{"id":"EUVD-2026-68141","revision":null,"records":[{"revision":"5c4a4fa7da5e48aca88e2ccfd8a72637","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-82562","aliases":[],"title":"qs.parse does not enforce arrayLimit on comma groups under bracket-push keys when throwOnLimitExceeded is set (incomplete fix for CVE-2026-2391)","description":"### Summary\n\n\n\nWhen `qs.parse` is called with `comma: true` and `throwOnLimitExceeded: true`, a comma-separated value under a bracket-push key (`a[]=1,2,3,4`) is split into an array without being compared against `arrayLimit`, while the same value under a flat key (`a=1,2,3,4`), an indexed key (`a[0]=`), a nested key (`a[b]=`), or a dotted key (`a.b=` with `allowDots`) throws the documented `RangeError`. A single parameter such as `a[]=1,2,2,...` therefore produces an inner array of arbitrary length even though the caller opted into the hard limit. This is the `[]=` key form that the fix for CVE-2026-2391 (qs 6.14.2) did not cover.\n\n\n\n### Details\n\n\n\nIn `lib/parse.js`, a comma-separated value under a `[]=` key is split and then wrapped as a single nested element (`val = [val]`, so that each `a[]=x,y` group counts as one element of the outer array). The `arrayLimit` check that 6.14.2 added for comma values runs after that wrap, so for `[]=` parts it only ever saw the wrapper of length 1. 6.15.3 added a pre-split comma count so that an oversized value throws before it is allocated, but gated it on an `isFlatArrayValue` flag that `parseValues` set to `false` for any part containing `[]=`, and did not pass it for object-valued input, so the gap remained.\n\n\n\n#### PoC\n\n\n\n```js\n\n\n\nvar qs = require('qs');\n\n\n\nvar options = { comma: true, arrayLimit: 3, throwOnLimitExceeded: true };\n\n\n\nqs.parse('a=1,2,3,4', options);   // RangeError: Array limit exceeded. Only 3 elements allowed in an array.\n\n\n\nqs.parse('a[]=1,2,3,4', options); // { a: [ [ '1', '2', '3', '4' ] ] }  (no throw)\n\n\n\nqs.parse('a[]=' + '1,'.repeat(1000000) + '1', { comma: true, arrayLimit: 20, throwOnLimitExceeded: true });\n\n\n\n// no throw; a 1,000,001-element inner array is allocated\n\n\n\n```\n\n\n\n#### Fix\n\n\n\n`lib/parse.js`, applied in 8859c37 on `main` and released as v6.16.0: the `isFlatArrayValue` gate is removed, so every comma-split value is counted against `arrayLimit` before splitting regardless of key form. An in-limit group under `a[]=` still counts as one element of the outer array, and the default (`throwOnLimitExceeded: false`) path is unchanged.\n\n\n\n### Affected versions\n\n\n\n`>=6.14.2 <6.16.0`, fixed in v6.16.0.\n\n\n\nv6.14.2 introduced `arrayLimit` enforcement for comma values (the fix for CVE-2026-2391) but only for values not under a `[]=` key, and every release from v6.14.2 through v6.15.3 has the same gap. v6.14.0 and v6.14.1, where `throwOnLimitExceeded` exists but does not apply to any comma form, are covered by CVE-2026-2391 rather than this record. Earlier lines (6.7.x through 6.13.x) have `comma` but no `throwOnLimitExceeded`, so there is no hard cap on any comma path to bypass; releases before 6.7.0 have no `comma` option.\n\n\n\n### Impact\n\n\n\nAn unauthenticated attacker who can reach an application that parses untrusted query strings or urlencoded bodies with both `comma: true` and `throwOnLimitExceeded: true` (both non-default) can bypass the configured limit with a single `a[]=` parameter and force the parser to allocate an array proportional to the request size. The cost is strictly linear in the attacker-supplied bytes (about 0.1 microseconds and 6 to 7 retained bytes per input byte; the same out-of-memory threshold as the documented default `throwOnLimitExceeded: false` path), so a transport-layer request or body size limit bounds it completely (and node's default maximum HTTP header size of 16 KB already bounds the request line, so multi-megabyte payloads need a body parser). The impact is that an opt-in hard limit fails open on one key spelling, not unbounded allocation from a small input.","state":0,"publishedAt":"2026-08-29T23:58:31.289+00:00","modifiedAt":"2026-08-31T17:04:14.95+00:00","affected":[{"ecosystem":"https://npmjs.com/qs","name":"qs","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"ljharb\",\n                    \"product\": \"qs\",\n                    \"collectionURL\": \"https://npmjs.com/qs\",\n                    \"packageName\": \"qs\",\n                    \"repo\": \"https://github.com/ljharb/qs\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"6.14.2\",\n                            \"lessThan\": \"6.16.0\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","score":3.7,"severity":"LOW"},{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","score":6.3,"severity":"MEDIUM"}],"references":["https://github.com/ljharb/qs/security/advisories/GHSA-x5fp-wj9c-mxmx","https://github.com/ljharb/qs/commit/8859c37470e11b42b547b275e4e9bd0bc8cc5464","https://github.com/ljharb/qs/security/advisories/GHSA-w7fw-mjwx-w883"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-82562","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-82562","identifiers":["CVE-2026-82562"]},"retained":false,"historicalAffected":[]},{"revision":"f51892367366459eb59270401a52e7b1","observedAt":"2026-11-13T18:01:42.572+00:00","statement":{"source":"euvd","id":"EUVD-2026-68141","aliases":["CVE-2026-82562","GHSA-x5fp-wj9c-mxmx"],"title":"### Summary","description":"### Summary\n\n\n\nWhen `qs.parse` is called with `comma: true` and `throwOnLimitExceeded: true`, a comma-separated value under a bracket-push key (`a[]=1,2,3,4`) is split into an array without being compared against `arrayLimit`, while the same value under a flat key (`a=1,2,3,4`), an indexed key (`a[0]=`), a nested key (`a[b]=`), or a dotted key (`a.b=` with `allowDots`) throws the documented `RangeError`. A single parameter such as `a[]=1,2,2,...` therefore produces an inner array of arbitrary length even though the caller opted into the hard limit. This is the `[]=` key form that the fix for CVE-2026-2391 (qs 6.14.2) did not cover.\n\n\n\n### Details\n\n\n\nIn `lib/parse.js`, a comma-separated value under a `[]=` key is split and then wrapped as a single nested element (`val = [val]`, so that each `a[]=x,y` group counts as one element of the outer array). The `arrayLimit` check that 6.14.2 added for comma values runs after that wrap, so for `[]=` parts it only ever saw the wrapper of length 1. 6.15.3 added a pre-split comma count so that an oversized value throws before it is allocated, but gated it on an `isFlatArrayValue` flag that `parseValues` set to `false` for any part containing `[]=`, and did not pass it for object-valued input, so the gap remained.\n\n\n\n#### PoC\n\n\n\n```js\n\n\n\nvar qs = require('qs');\n\n\n\nvar options = { comma: true, arrayLimit: 3, throwOnLimitExceeded: true };\n\n\n\nqs.parse('a=1,2,3,4', options);   // RangeError: Array limit exceeded. Only 3 elements allowed in an array.\n\n\n\nqs.parse('a[]=1,2,3,4', options); // { a: [ [ '1', '2', '3', '4' ] ] }  (no throw)\n\n\n\nqs.parse('a[]=' + '1,'.repeat(1000000) + '1', { comma: true, arrayLimit: 20, throwOnLimitExceeded: true });\n\n\n\n// no throw; a 1,000,001-element inner array is allocated\n\n\n\n```\n\n\n\n#### Fix\n\n\n\n`lib/parse.js`, applied in 8859c37 on `main` and released as v6.16.0: the `isFlatArrayValue` gate is removed, so every comma-split value is counted against `arrayLimit` before splitting regardless of key form. An in-limit group under `a[]=` still counts as one element of the outer array, and the default (`throwOnLimitExceeded: false`) path is unchanged.\n\n\n\n### Affected versions\n\n\n\n`>=6.14.2 <6.16.0`, fixed in v6.16.0.\n\n\n\nv6.14.2 introduced `arrayLimit` enforcement for comma values (the fix for CVE-2026-2391) but only for values not under a `[]=` key, and every release from v6.14.2 through v6.15.3 has the same gap. v6.14.0 and v6.14.1, where `throwOnLimitExceeded` exists but does not apply to any comma form, are covered by CVE-2026-2391 rather than this record. Earlier lines (6.7.x through 6.13.x) have `comma` but no `throwOnLimitExceeded`, so there is no hard cap on any comma path to bypass; releases before 6.7.0 have no `comma` option.\n\n\n\n### Impact\n\n\n\nAn unauthenticated attacker who can reach an application that parses untrusted query strings or urlencoded bodies with both `comma: true` and `throwOnLimitExceeded: true` (both non-default) can bypass the configured limit with a single `a[]=` parameter and force the parser to allocate an array proportional to the request size. The cost is strictly linear in the attacker-supplied bytes (about 0.1 microseconds and 6 to 7 retained bytes per input byte; the same out-of-memory threshold as the documented default `throwOnLimitExceeded: false` path), so a transport-layer request or body size limit bounds it completely (and node's default maximum HTTP header size of 16 KB already bounds the request line, so multi-megabyte payloads need a body parser). The impact is that an opt-in hard limit fails open on one key spelling, not unbounded allocation from a small input.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","score":6.3,"severity":null}],"references":["https://github.com/ljharb/qs/security/advisories/GHSA-x5fp-wj9c-mxmx","https://github.com/ljharb/qs/commit/8859c37470e11b42b547b275e4e9bd0bc8cc5464","https://github.com/ljharb/qs/security/advisories/GHSA-w7fw-mjwx-w883"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-68141","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Aug 29, 2026, 11:58:31 PM","dateUpdated":"Aug 31, 2026, 5:04:14 PM"},"relatedAdvisories":[{"id":"RHSA-2026:63164","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update","vulnerabilityIds":["CVE-2026-8595","CVE-2026-8609","CVE-2026-9765","CVE-2026-17033","CVE-2026-19197","CVE-2026-21723","CVE-2026-33382","CVE-2026-82417","CVE-2026-82562","CVE-2026-84375"]},{"id":"WID-SEC-W-2026-3623","title":"IBM DataPower Gateway: Mehrere Schwachstellen","vulnerabilityIds":["CVE-2023-53781","CVE-2025-14087","CVE-2025-14512","CVE-2025-21858","CVE-2025-22105","CVE-2025-37980","CVE-2025-38015","CVE-2025-38097","CVE-2025-38180","CVE-2025-38400","CVE-2025-38405","CVE-2025-38441","CVE-2025-38470","CVE-2025-38653","CVE-2025-39766","CVE-2025-39797","CVE-2025-39866","CVE-2025-40134","CVE-2025-48431","CVE-2025-5278","CVE-2025-68183","CVE-2025-68211","CVE-2025-68214","CVE-2025-68347","CVE-2025-68366","CVE-2025-68724","CVE-2025-71066","CVE-2025-71089","CVE-2026-12143","CVE-2026-13257","CVE-2026-13258","CVE-2026-13757","CVE-2026-14269","CVE-2026-14273","CVE-2026-14496","CVE-2026-14497","CVE-2026-14502","CVE-2026-14507","CVE-2026-14508","CVE-2026-14509","CVE-2026-14888","CVE-2026-14905","CVE-2026-14988","CVE-2026-14990","CVE-2026-14991","CVE-2026-14992","CVE-2026-14999","CVE-2026-15588","CVE-2026-15762","CVE-2026-15781","CVE-2026-15784","CVE-2026-15819","CVE-2026-15822","CVE-2026-15824","CVE-2026-16111","CVE-2026-16159","CVE-2026-16161","CVE-2026-16163","CVE-2026-16164","CVE-2026-16165","CVE-2026-16167","CVE-2026-16169","CVE-2026-16170","CVE-2026-16176","CVE-2026-16177","CVE-2026-16178","CVE-2026-16179","CVE-2026-16181","CVE-2026-16182","CVE-2026-16340","CVE-2026-16439","CVE-2026-16440","CVE-2026-16441","CVE-2026-2100","CVE-2026-22979","CVE-2026-22984","CVE-2026-22990","CVE-2026-23002","CVE-2026-23060","CVE-2026-23110","CVE-2026-23204","CVE-2026-23209","CVE-2026-23216","CVE-2026-23243","CVE-2026-23270","CVE-2026-23392","CVE-2026-23455","CVE-2026-2391","CVE-2026-31411","CVE-2026-31419","CVE-2026-31488","CVE-2026-31508","CVE-2026-31532","CVE-2026-31581","CVE-2026-31607","CVE-2026-31613","CVE-2026-31669","CVE-2026-31677","CVE-2026-31684","CVE-2026-31685","CVE-2026-33845","CVE-2026-33846","CVE-2026-3832","CVE-2026-3833","CVE-2026-4046","CVE-2026-41254","CVE-2026-41602","CVE-2026-41606","CVE-2026-41607","CVE-2026-42009","CVE-2026-42010","CVE-2026-42011","CVE-2026-42012","CVE-2026-42013","CVE-2026-42014","CVE-2026-42015","CVE-2026-43027","CVE-2026-43037","CVE-2026-43038","CVE-2026-43056","CVE-2026-43074","CVE-2026-43116","CVE-2026-43125","CVE-2026-43163","CVE-2026-43190","CVE-2026-43198","CVE-2026-43260","CVE-2026-43284","CVE-2026-43303","CVE-2026-43329","CVE-2026-43499","CVE-2026-43501","CVE-2026-43868","CVE-2026-43870","CVE-2026-4437","CVE-2026-4438","CVE-2026-45852","CVE-2026-46054","CVE-2026-46086","CVE-2026-46116","CVE-2026-46173","CVE-2026-46181","CVE-2026-46242","CVE-2026-46259","CVE-2026-46300","CVE-2026-46331","CVE-2026-46333","CVE-2026-46917","CVE-2026-46968","CVE-2026-47010","CVE-2026-47021","CVE-2026-47027","CVE-2026-47059","CVE-2026-47063","CVE-2026-48144","CVE-2026-48145","CVE-2026-5260","CVE-2026-52923","CVE-2026-52991","CVE-2026-53006","CVE-2026-53009","CVE-2026-53131","CVE-2026-53189","CVE-2026-53264","CVE-2026-53266","CVE-2026-5419","CVE-2026-5450","CVE-2026-55602","CVE-2026-55603","CVE-2026-55968","CVE-2026-55970","CVE-2026-58010","CVE-2026-58011","CVE-2026-58012","CVE-2026-58013","CVE-2026-58014","CVE-2026-58015","CVE-2026-58016","CVE-2026-58662","CVE-2026-59879","CVE-2026-59880","CVE-2026-60147","CVE-2026-60589","CVE-2026-61308","CVE-2026-63913","CVE-2026-63952","CVE-2026-64017","CVE-2026-64530","CVE-2026-64560","CVE-2026-70906","CVE-2026-70907","CVE-2026-74581","CVE-2026-82417","CVE-2026-82562","CVE-2026-83605","CVE-2026-83607","CVE-2026-83608","CVE-2026-83613","CVE-2026-83614","CVE-2026-83615","CVE-2026-83616","CVE-2026-83619"]},{"id":"NCSC-2026-0431","title":"Kwetsbaarheden verholpen in IBM DataPower Gateway en onderliggende componenten","vulnerabilityIds":["CVE-2023-53781","CVE-2025-14087","CVE-2025-14512","CVE-2025-21858","CVE-2025-22105","CVE-2025-37980","CVE-2025-38015","CVE-2025-38097","CVE-2025-38180","CVE-2025-38400","CVE-2025-38405","CVE-2025-38441","CVE-2025-38470","CVE-2025-38653","CVE-2025-39766","CVE-2025-39797","CVE-2025-39866","CVE-2025-40134","CVE-2025-48431","CVE-2025-5278","CVE-2025-68183","CVE-2025-68211","CVE-2025-68214","CVE-2025-68347","CVE-2025-68366","CVE-2025-68724","CVE-2025-71066","CVE-2025-71089","CVE-2026-12143","CVE-2026-13257","CVE-2026-13258","CVE-2026-13757","CVE-2026-14269","CVE-2026-14273","CVE-2026-14496","CVE-2026-14497","CVE-2026-14502","CVE-2026-14507","CVE-2026-14508","CVE-2026-14509","CVE-2026-14888","CVE-2026-14905","CVE-2026-14988","CVE-2026-14990","CVE-2026-14991","CVE-2026-14992","CVE-2026-14999","CVE-2026-15588","CVE-2026-15762","CVE-2026-15781","CVE-2026-15784","CVE-2026-15819","CVE-2026-15822","CVE-2026-15824","CVE-2026-16111","CVE-2026-16159","CVE-2026-16161","CVE-2026-16163","CVE-2026-16164","CVE-2026-16165","CVE-2026-16167","CVE-2026-16169","CVE-2026-16170","CVE-2026-16176","CVE-2026-16177","CVE-2026-16178","CVE-2026-16179","CVE-2026-16181","CVE-2026-16182","CVE-2026-16340","CVE-2026-16439","CVE-2026-16440","CVE-2026-16441","CVE-2026-2100","CVE-2026-22979","CVE-2026-22984","CVE-2026-22990","CVE-2026-23002","CVE-2026-23060","CVE-2026-23110","CVE-2026-23204","CVE-2026-23209","CVE-2026-23216","CVE-2026-23243","CVE-2026-23270","CVE-2026-23392","CVE-2026-23455","CVE-2026-2391","CVE-2026-31411","CVE-2026-31419","CVE-2026-31488","CVE-2026-31508","CVE-2026-31532","CVE-2026-31581","CVE-2026-31607","CVE-2026-31613","CVE-2026-31669","CVE-2026-31677","CVE-2026-31684","CVE-2026-31685","CVE-2026-33845","CVE-2026-33846","CVE-2026-3832","CVE-2026-3833","CVE-2026-4046","CVE-2026-41254","CVE-2026-41602","CVE-2026-41606","CVE-2026-41607","CVE-2026-42009","CVE-2026-42010","CVE-2026-42011","CVE-2026-42012","CVE-2026-42013","CVE-2026-42014","CVE-2026-42015","CVE-2026-43027","CVE-2026-43037","CVE-2026-43038","CVE-2026-43056","CVE-2026-43074","CVE-2026-43116","CVE-2026-43125","CVE-2026-43163","CVE-2026-43190","CVE-2026-43198","CVE-2026-43260","CVE-2026-43284","CVE-2026-43303","CVE-2026-43329","CVE-2026-43499","CVE-2026-43501","CVE-2026-43868","CVE-2026-43870","CVE-2026-4437","CVE-2026-4438","CVE-2026-45852","CVE-2026-46054","CVE-2026-46086","CVE-2026-46116","CVE-2026-46173","CVE-2026-46181","CVE-2026-46242","CVE-2026-46259","CVE-2026-46300","CVE-2026-46331","CVE-2026-46333","CVE-2026-46917","CVE-2026-46968","CVE-2026-47010","CVE-2026-47021","CVE-2026-47027","CVE-2026-47059","CVE-2026-47063","CVE-2026-48144","CVE-2026-48145","CVE-2026-5260","CVE-2026-52923","CVE-2026-52991","CVE-2026-53006","CVE-2026-53009","CVE-2026-53131","CVE-2026-53189","CVE-2026-53264","CVE-2026-53266","CVE-2026-5419","CVE-2026-5450","CVE-2026-55602","CVE-2026-55603","CVE-2026-55968","CVE-2026-55970","CVE-2026-58010","CVE-2026-58011","CVE-2026-58012","CVE-2026-58013","CVE-2026-58014","CVE-2026-58015","CVE-2026-58016","CVE-2026-58662","CVE-2026-59879","CVE-2026-59880","CVE-2026-60147","CVE-2026-60589","CVE-2026-61308","CVE-2026-63913","CVE-2026-63952","CVE-2026-64017","CVE-2026-64530","CVE-2026-64560","CVE-2026-70906","CVE-2026-70907","CVE-2026-74581","CVE-2026-82417","CVE-2026-82562","CVE-2026-83605","CVE-2026-83607","CVE-2026-83608","CVE-2026-83613","CVE-2026-83614","CVE-2026-83615","CVE-2026-83616","CVE-2026-83619"]},{"id":"RHSA-2026:62544","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update","vulnerabilityIds":["CVE-2026-82417","CVE-2026-82562"]},{"id":"WID-SEC-W-2026-3596","title":"IBM App Connect Enterprise: Mehrere Schwachstellen","vulnerabilityIds":["CVE-2022-35948","CVE-2026-13149","CVE-2026-14257","CVE-2026-15157","CVE-2026-1527","CVE-2026-16728","CVE-2026-16729","CVE-2026-18149","CVE-2026-18540","CVE-2026-19534","CVE-2026-2391","CVE-2026-45820","CVE-2026-54272","CVE-2026-63670","CVE-2026-67213","CVE-2026-67214","CVE-2026-69152","CVE-2026-69192","CVE-2026-69198","CVE-2026-73566","CVE-2026-73646","CVE-2026-77037","CVE-2026-77063","CVE-2026-77078","CVE-2026-82333","CVE-2026-82417","CVE-2026-82562","CVE-2026-83605","CVE-2026-83606","CVE-2026-83607","CVE-2026-83608","CVE-2026-83609","CVE-2026-83610","CVE-2026-83611","CVE-2026-83612","CVE-2026-83613","CVE-2026-83614","CVE-2026-83615","CVE-2026-83616","CVE-2026-83618","CVE-2026-83619","CVE-2026-84292","CVE-2026-84371","CVE-2026-84375","CVE-2026-84890","CVE-2026-84933","CVE-2026-84947","CVE-2026-84961","CVE-2026-85008","CVE-2026-85014","CVE-2026-85024","CVE-2026-85152"]},{"id":"RHSA-2026:68754","title":"Red Hat Security Advisory: Red Hat OpenShift Dev Spaces 3.30.1 Release.","vulnerabilityIds":["CVE-2026-4800","CVE-2026-45623","CVE-2026-45819","CVE-2026-47219","CVE-2026-48801","CVE-2026-54272","CVE-2026-55831","CVE-2026-55833","CVE-2026-56745","CVE-2026-56746","CVE-2026-56819","CVE-2026-59887","CVE-2026-59899","CVE-2026-67213","CVE-2026-67312","CVE-2026-67313","CVE-2026-67314","CVE-2026-67320","CVE-2026-67321","CVE-2026-69152","CVE-2026-69153","CVE-2026-69192","CVE-2026-71436","CVE-2026-73086","CVE-2026-73088","CVE-2026-73089","CVE-2026-73508","CVE-2026-73566","CVE-2026-73646","CVE-2026-75899","CVE-2026-75931","CVE-2026-75975","CVE-2026-76172","CVE-2026-82562","CVE-2026-84292","CVE-2026-84375","CVE-2026-84394"]},{"id":"RHSA-2026:60866","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update","vulnerabilityIds":["CVE-2026-73501","CVE-2026-75899","CVE-2026-75931","CVE-2026-75975","CVE-2026-76172","CVE-2026-82562"]},{"id":"RHSA-2026:90321","title":"Red Hat Security Advisory: Red Hat OpenShift Dev Spaces 3.31.0 Release.","vulnerabilityIds":["CVE-2023-54404","CVE-2025-62718","CVE-2026-8643","CVE-2026-9496","CVE-2026-12185","CVE-2026-13697","CVE-2026-14682","CVE-2026-15076","CVE-2026-16308","CVE-2026-17106","CVE-2026-18427","CVE-2026-19203","CVE-2026-19534","CVE-2026-39820","CVE-2026-41178","CVE-2026-41707","CVE-2026-42499","CVE-2026-42502","CVE-2026-45416","CVE-2026-47884","CVE-2026-47886","CVE-2026-47888","CVE-2026-47890","CVE-2026-47892","CVE-2026-50010","CVE-2026-55831","CVE-2026-55833","CVE-2026-55851","CVE-2026-56745","CVE-2026-56746","CVE-2026-56819","CVE-2026-56852","CVE-2026-56854","CVE-2026-58062","CVE-2026-59280","CVE-2026-59282","CVE-2026-59283","CVE-2026-59296","CVE-2026-59313","CVE-2026-59323","CVE-2026-59651","CVE-2026-59887","CVE-2026-59899","CVE-2026-59901","CVE-2026-62243","CVE-2026-64607","CVE-2026-67213","CVE-2026-67312","CVE-2026-67313","CVE-2026-67314","CVE-2026-67320","CVE-2026-67321","CVE-2026-68494","CVE-2026-68497","CVE-2026-69152","CVE-2026-69192","CVE-2026-71290","CVE-2026-71324","CVE-2026-71325","CVE-2026-71327","CVE-2026-73500","CVE-2026-73508","CVE-2026-74835","CVE-2026-75838","CVE-2026-75899","CVE-2026-75931","CVE-2026-76169","CVE-2026-81521","CVE-2026-82417","CVE-2026-82562","CVE-2026-84292","CVE-2026-84375","CVE-2026-84394","CVE-2026-84428","CVE-2026-84445","CVE-2026-84469","CVE-2026-84504","CVE-2026-84961","CVE-2026-85062","CVE-2026-85124","CVE-2026-85152","CVE-2026-85595","CVE-2026-85597","CVE-2026-86063","CVE-2026-87743","CVE-2026-88004","CVE-2026-88007","CVE-2026-88008","CVE-2026-88009","CVE-2026-88011","CVE-2026-88012","CVE-2026-88031","CVE-2026-88878","CVE-2026-88879","CVE-2026-90711","CVE-2026-93749","CVE-2026-100655","CVE-2026-100656","CVE-2026-100666","CVE-2026-101916","CVE-2026-102925","CVE-2026-102930","CVE-2026-103435","CVE-2026-109618","CVE-2026-109619"]}],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-68141","identifiers":["EUVD-2026-68141","CVE-2026-82562","GHSA-x5fp-wj9c-mxmx"]},"retained":false,"historicalAffected":[]},{"revision":"52d145d5e7a04591b16677aa816a45c6","observedAt":"2026-10-25T16:19:10.271+00:00","statement":{"source":"nvd","id":"CVE-2026-82562","aliases":[],"title":"### Summary","description":"### Summary\n\n\n\nWhen `qs.parse` is called with `comma: true` and `throwOnLimitExceeded: true`, a comma-separated value under a bracket-push key (`a[]=1,2,3,4`) is split into an array without being compared against `arrayLimit`, while the same value under a flat key (`a=1,2,3,4`), an indexed key (`a[0]=`), a nested key (`a[b]=`), or a dotted key (`a.b=` with `allowDots`) throws the documented `RangeError`. A single parameter such as `a[]=1,2,2,...` therefore produces an inner array of arbitrary length even though the caller opted into the hard limit. This is the `[]=` key form that the fix for CVE-2026-2391 (qs 6.14.2) did not cover.\n\n\n\n### Details\n\n\n\nIn `lib/parse.js`, a comma-separated value under a `[]=` key is split and then wrapped as a single nested element (`val = [val]`, so that each `a[]=x,y` group counts as one element of the outer array). The `arrayLimit` check that 6.14.2 added for comma values runs after that wrap, so for `[]=` parts it only ever saw the wrapper of length 1. 6.15.3 added a pre-split comma count so that an oversized value throws before it is allocated, but gated it on an `isFlatArrayValue` flag that `parseValues` set to `false` for any part containing `[]=`, and did not pass it for object-valued input, so the gap remained.\n\n\n\n#### PoC\n\n\n\n```js\n\n\n\nvar qs = require('qs');\n\n\n\nvar options = { comma: true, arrayLimit: 3, throwOnLimitExceeded: true };\n\n\n\nqs.parse('a=1,2,3,4', options);   // RangeError: Array limit exceeded. Only 3 elements allowed in an array.\n\n\n\nqs.parse('a[]=1,2,3,4', options); // { a: [ [ '1', '2', '3', '4' ] ] }  (no throw)\n\n\n\nqs.parse('a[]=' + '1,'.repeat(1000000) + '1', { comma: true, arrayLimit: 20, throwOnLimitExceeded: true });\n\n\n\n// no throw; a 1,000,001-element inner array is allocated\n\n\n\n```\n\n\n\n#### Fix\n\n\n\n`lib/parse.js`, applied in 8859c37 on `main` and released as v6.16.0: the `isFlatArrayValue` gate is removed, so every comma-split value is counted against `arrayLimit` before splitting regardless of key form. An in-limit group under `a[]=` still counts as one element of the outer array, and the default (`throwOnLimitExceeded: false`) path is unchanged.\n\n\n\n### Affected versions\n\n\n\n`>=6.14.2 <6.16.0`, fixed in v6.16.0.\n\n\n\nv6.14.2 introduced `arrayLimit` enforcement for comma values (the fix for CVE-2026-2391) but only for values not under a `[]=` key, and every release from v6.14.2 through v6.15.3 has the same gap. v6.14.0 and v6.14.1, where `throwOnLimitExceeded` exists but does not apply to any comma form, are covered by CVE-2026-2391 rather than this record. Earlier lines (6.7.x through 6.13.x) have `comma` but no `throwOnLimitExceeded`, so there is no hard cap on any comma path to bypass; releases before 6.7.0 have no `comma` option.\n\n\n\n### Impact\n\n\n\nAn unauthenticated attacker who can reach an application that parses untrusted query strings or urlencoded bodies with both `comma: true` and `throwOnLimitExceeded: true` (both non-default) can bypass the configured limit with a single `a[]=` parameter and force the parser to allocate an array proportional to the request size. The cost is strictly linear in the attacker-supplied bytes (about 0.1 microseconds and 6 to 7 retained bytes per input byte; the same out-of-memory threshold as the documented default `throwOnLimitExceeded: false` path), so a transport-layer request or body size limit bounds it completely (and node's default maximum HTTP header size of 16 KB already bounds the request line, so multi-megabyte payloads need a body parser). The impact is that an opt-in hard limit fails open on one key spelling, not unbounded allocation from a small input.","state":0,"publishedAt":"2026-08-30T01:20:32.82+00:00","modifiedAt":"2026-09-03T18:00:36.97+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · 7ffcee3d-2c14-4c3e-b844-86c6a321a158 · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":6.3,"severity":"MEDIUM"},{"system":"CVSS 3.1 · 7ffcee3d-2c14-4c3e-b844-86c6a321a158 · Secondary","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","score":3.7,"severity":"LOW"}],"references":["https://github.com/ljharb/qs/commit/8859c37470e11b42b547b275e4e9bd0bc8cc5464","https://github.com/ljharb/qs/security/advisories/GHSA-w7fw-mjwx-w883","https://github.com/ljharb/qs/security/advisories/GHSA-x5fp-wj9c-mxmx"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-82562","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Awaiting Analysis","weaknesses":["CWE-770"],"productCriteria":[],"sourceDates":{"published":"2026-08-30T01:20:32.820","lastModified":"2026-09-03T18:00:36.970"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-82562","identifiers":["CVE-2026-82562"]},"retained":false,"historicalAffected":[]},{"revision":"07c4a7c715a84ce9886cb72ab14c89d7","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-x5fp-wj9c-mxmx","aliases":["CVE-2026-82562"],"title":"qs array-limit bypass via bracket-key comma parsing","description":"### Summary\n\n`qs` `v6.15.3` allows bracket-key input to bypass `arrayLimit` and `throwOnLimitExceeded` when `comma: true`. The input `a[]=1,2,3,4` succeeds with `arrayLimit: 3`, while the equivalent plain-key input is rejected.\n\nAffected version tested:\n\n```text\nqs v6.15.3\ncommit 18d085e919dae70c8f1b200ab99323058edab2c2\n```\n\n### Details\n\n`parseArrayValue()` enforces the comma limit only for flat values. The `a[]` form is marked non-flat, so its comma-separated value is wrapped after parsing and the inner array is not checked. A single parameter can therefore materialize arbitrarily large arrays.\n\n### PoC\n\n```js\nconst qs = require('qs')\nconst options = { comma: true, arrayLimit: 3, throwOnLimitExceeded: true }\n\nconst result = qs.parse('a[]=1,2,3,4', options)\nconsole.log(result.a[0].length) // 4; expected RangeError\n\nconst big = qs.parse('a[]=' + '1,'.repeat(1000000) + '1', { comma: true, arrayLimit: 20 })\nconsole.log(big.a[0].length) // 1000001\n```\n\nOn `v6.15.3`, the first input parses successfully and the second creates an array with 1,000,001 elements. The equivalent `a=1,2,3,4` input throws `RangeError` as expected.\n\n### Impact\n\nAn attacker who can supply a query string or form body can bypass configured array limits and force excessive memory allocation, causing denial of service. The limit must be applied after comma splitting and before the resulting array is wrapped.","state":0,"publishedAt":"2026-09-02T14:46:57+00:00","modifiedAt":"2026-09-10T03:50:54.569332+00:00","affected":[{"ecosystem":"npm","name":"qs","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"6.14.2"},{"kind":"fixed","version":"6.16.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","score":null,"severity":null},{"system":"CVSS_V4","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/ljharb/qs/security/advisories/GHSA-w7fw-mjwx-w883","https://github.com/ljharb/qs/security/advisories/GHSA-x5fp-wj9c-mxmx","https://nvd.nist.gov/vuln/detail/CVE-2026-82562","https://github.com/ljharb/qs/commit/8859c37470e11b42b547b275e4e9bd0bc8cc5464","https://github.com/ljharb/qs"],"sourceUrl":"https://github.com/advisories/GHSA-x5fp-wj9c-mxmx","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-x5fp-wj9c-mxmx","identifiers":["GHSA-x5fp-wj9c-mxmx","CVE-2026-82562"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-15T13:01:41.3445250+00:00","complete":true,"records":1781,"lastAttemptAt":"2026-11-15T13:01:41.344525+00:00","lastSuccessAt":"2026-11-15T13:01:46.2867767+00:00","error":null,"lastVerifiedAt":"2026-11-15T13:01:46.2867777+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-7de4d7559a5263003f03d9f70577ab06f92ba4178309f26fce53e22a4a959294-24e910670d68255a90dfc1d94d37ac5394a0a43e960361a78142e746e5b8e0e9","complete":true,"records":425790,"lastAttemptAt":"2026-11-15T13:01:16.7308429+00:00","lastSuccessAt":"2026-11-15T13:01:16.7018281+00:00","error":null,"lastVerifiedAt":"2026-11-15T13:01:16.7308429+00:00","snapshotPublishedAt":"2026-11-15T12:22:01+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-fbdfcc05668641faa2f409f76c72bd06","complete":false,"records":13821,"lastAttemptAt":"2026-11-15T13:05:17.8445918+00:00","lastSuccessAt":"2026-11-15T13:05:18.0126095+00:00","error":null,"lastVerifiedAt":"2026-11-15T13:05:18.0126095+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-15T13:01:41.3445250+00:00","complete":true,"records":1125,"lastAttemptAt":"2026-11-15T13:01:41.344525+00:00","lastSuccessAt":"2026-11-15T13:01:46.3027206+00:00","error":null,"lastVerifiedAt":"2026-11-15T13:01:46.3027219+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-00496e381624434cb51cd6ee97f87d5f","complete":true,"records":13833,"lastAttemptAt":"2026-11-15T13:02:04.5706057+00:00","lastSuccessAt":"2026-11-15T13:02:04.555+00:00","error":null,"lastVerifiedAt":"2026-11-15T13:02:04.555+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13874,"expectedIdentifiers":13874,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-64eea06dbd27de8464d5dbce1b78cc794cc59e2d901516ae0d3ea76e624cdae0","complete":true,"records":9955,"lastAttemptAt":"2026-11-15T13:01:38.1237717+00:00","lastSuccessAt":"2026-11-14T13:57:23.1208135+00:00","error":null,"lastVerifiedAt":"2026-11-15T13:01:38.1237717+00:00","snapshotPublishedAt":"2026-11-14T13:17:57+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-f4424d7d4861b1af1404bd15abcb83f295dcd003412a9340ca99dc8200aa148a","complete":true,"records":2014,"lastAttemptAt":"2026-11-15T13:01:22.067621+00:00","lastSuccessAt":"2026-11-13T19:57:08.2864435+00:00","error":null,"lastVerifiedAt":"2026-11-15T13:01:22.067621+00:00","snapshotPublishedAt":"2026-11-13T19:33:10+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-6086d649bcb454cdf302d7d9275177bda73550e1b6e446b3520e9b6266d3582c","complete":true,"records":3148,"lastAttemptAt":"2026-11-15T13:01:41.1317031+00:00","lastSuccessAt":"2026-11-15T11:05:17.1034234+00:00","error":null,"lastVerifiedAt":"2026-11-15T13:01:41.1317031+00:00","snapshotPublishedAt":"2026-11-15T10:03:04+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-ff18f36f13fcca3a20a3fb9274b59b8872d18869a99071730e1e79b625c8f612","complete":true,"records":232475,"lastAttemptAt":"2026-11-15T13:01:28.8971106+00:00","lastSuccessAt":"2026-11-15T11:05:10.4195883+00:00","error":null,"lastVerifiedAt":"2026-11-15T13:01:28.8971106+00:00","snapshotPublishedAt":"2026-11-15T10:33:06+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}