{"id":"GHSA-x962-5xwx-fr8x","revision":null,"records":[{"revision":"d7860128411742fba4e86d6b01e90e46","observedAt":"2026-11-13T05:16:18.635+00:00","statement":{"source":"cve-program","id":"CVE-2026-123571","aliases":[],"title":"Hickory DNS from 0.26.0 before 0.26.2 Panic via TSIG RDATA Decoding","description":"Hickory DNS from 0.26.0 before 0.26.2 contains an integer underflow vulnerability in TSIG RDATA decoding that allows remote attackers to trigger a panic via malformed records. Attackers can send a crafted TSIG record in DNS wire format to cause unchecked subtraction underflow, crashing builds with overflow checks enabled and causing denial of service.","state":0,"publishedAt":"2026-11-08T01:38:08.593+00:00","modifiedAt":"2026-11-13T03:04:27.566+00:00","affected":[{"ecosystem":"Vendor product","name":"hickory-dns","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"hickory-dns\",\n                    \"product\": \"hickory-dns\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:cargo/hickory-proto\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0.26.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"0.26.2\"\n                        },\n                        {\n                            \"version\": \"0.26.2\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.7,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-x962-5xwx-fr8x","https://www.vulncheck.com/advisories/hickory-dns-from-0.26.0-before-0.26.2-panic-via-tsig-rdata-decoding"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-123571","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-123571","identifiers":["CVE-2026-123571"]},"retained":false,"historicalAffected":[]},{"revision":"5472db2386df42318dbd5d92f587c299","observedAt":"2026-11-14T09:57:57.823+00:00","statement":{"source":"euvd","id":"EUVD-2026-119456","aliases":["CVE-2026-123571","GHSA-p8hx-6263-88h9"],"title":"Hickory DNS from 0.26.0 before 0.26.2 contains an integer underflow vulnerability in TSIG RDATA decoding that allows remote attackers to trigger a panic via malformed records. Attackers can send a crafted TSIG record in DNS wire format to c…","description":"Hickory DNS from 0.26.0 before 0.26.2 contains an integer underflow vulnerability in TSIG RDATA decoding that allows remote attackers to trigger a panic via malformed records. Attackers can send a crafted TSIG record in DNS wire format to cause unchecked subtraction underflow, crashing builds with overflow checks enabled and causing denial of service.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.7,"severity":null}],"references":["https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-x962-5xwx-fr8x","https://www.vulncheck.com/advisories/hickory-dns-from-0.26.0-before-0.26.2-panic-via-tsig-rdata-decoding"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-119456","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Nov 8, 2026, 1:38:08 AM","dateUpdated":"Nov 13, 2026, 3:04:27 AM"},"relatedAdvisories":[],"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-2026-119456","identifiers":["EUVD-2026-119456","CVE-2026-123571","GHSA-p8hx-6263-88h9"]},"retained":false,"historicalAffected":[]},{"revision":"aa709f62541049e6b429a545a5a776e4","observedAt":"2026-11-14T09:57:54.989+00:00","statement":{"source":"nvd","id":"CVE-2026-123571","aliases":[],"title":"Hickory DNS from 0.26.0 before 0.26.2 contains an integer underflow vulnerability in TSIG RDATA decoding that allows remote attackers to trigger a panic via malformed records. Attackers can send a crafted TSIG record in DNS wire format to c…","description":"Hickory DNS from 0.26.0 before 0.26.2 contains an integer underflow vulnerability in TSIG RDATA decoding that allows remote attackers to trigger a panic via malformed records. Attackers can send a crafted TSIG record in DNS wire format to cause unchecked subtraction underflow, crashing builds with overflow checks enabled and causing denial of service.","state":0,"publishedAt":"2026-11-08T02:16:49.99+00:00","modifiedAt":"2026-11-13T04:17:37.187+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · disclosure@vulncheck.com · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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":8.7,"severity":"HIGH"},{"system":"CVSS 3.1 · disclosure@vulncheck.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-x962-5xwx-fr8x","https://www.vulncheck.com/advisories/hickory-dns-from-0.26.0-before-0.26.2-panic-via-tsig-rdata-decoding"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-123571","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-191"],"productCriteria":[],"sourceDates":{"published":"2026-11-08T02:16:49.990","lastModified":"2026-11-13T04:17:37.187"},"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-2026-123571","identifiers":["CVE-2026-123571"]},"retained":false,"historicalAffected":[]},{"revision":"7d79946c2dda47e4a09939cc890d2c77","observedAt":"2026-11-12T09:55:27.764+00:00","statement":{"source":"osv","id":"RUSTSEC-2026-0488","aliases":["CVE-2026-123571","GHSA-x962-5xwx-fr8x"],"title":"Integer underflow when reporting a malformed TSIG record","description":"When a TSIG record is decoded from the DNS wire format, its MAC length and \"other data\" length are checked against the end of the record data. If a check failed, the error value was built from `end_idx - decoder.index()`. For a malformed record the decoder can already be past `end_idx`, so this unsigned subtraction underflows.\n\nIn builds with overflow checks enabled (the `dev` profile by default) the underflow panics, so a peer that sends a crafted TSIG record can crash the process. In builds without overflow checks the result wraps and is only used in the returned error.\n\nThe fix returns a plain \"insufficient bytes\" error without the subtraction. It is in 0.26.2.","state":0,"publishedAt":"2026-09-03T12:00:00+00:00","modifiedAt":"2026-11-12T09:45:02.5345913+00:00","affected":[{"ecosystem":"crates.io","name":"hickory-proto","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0.26.0"},{"kind":"fixed","version":"0.26.2"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://crates.io/crates/hickory-proto","https://rustsec.org/advisories/RUSTSEC-2026-0488.html","https://github.com/hickory-dns/hickory-dns/commit/b1246a8a21b6dcc34d427a7d39dd96e10825c384"],"sourceUrl":"https://osv.dev/vulnerability/RUSTSEC-2026-0488","license":"OSV · upstream source license applies","key":"osv:RUSTSEC-2026-0488","identifiers":["RUSTSEC-2026-0488","CVE-2026-123571","GHSA-x962-5xwx-fr8x"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-15T20:44:14.5536813+00:00","complete":true,"records":1781,"lastAttemptAt":"2026-11-15T20:44:14.5536813+00:00","lastSuccessAt":"2026-11-15T20:44:14.7860515+00:00","error":null,"lastVerifiedAt":"2026-11-15T20:44:14.7860528+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-f8a60997f6dce668b540a4f14f94592eb9e1c16849f01d8d6e2c78b68e21421f","complete":true,"records":425849,"lastAttemptAt":"2026-11-15T20:44:12.7538826+00:00","lastSuccessAt":"2026-11-15T20:44:12.7235178+00:00","error":null,"lastVerifiedAt":"2026-11-15T20:44:12.7538826+00:00","snapshotPublishedAt":"2026-11-15T20:32:11+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-d1da285a9bc641e2becc5e6c7fa6e0bc","complete":false,"records":13821,"lastAttemptAt":"2026-11-15T20:55:04.9136593+00:00","lastSuccessAt":"2026-11-15T20:55:04.909+00:00","error":"81 identifier lookups failed; latest failures include AccessDenied (HTTP 403). Other identifiers were checked independently.","lastVerifiedAt":"2026-11-15T20:55:04.909+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13793,"expectedIdentifiers":13874,"failedIdentifiers":81},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-15T20:44:14.5536813+00:00","complete":true,"records":1125,"lastAttemptAt":"2026-11-15T20:44:14.5536813+00:00","lastSuccessAt":"2026-11-15T20:44:14.7868578+00:00","error":null,"lastVerifiedAt":"2026-11-15T20:44:14.7868581+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-83941b66a7344db698aff661acaa6ebf","complete":true,"records":13833,"lastAttemptAt":"2026-11-15T20:44:58.4504738+00:00","lastSuccessAt":"2026-11-15T20:44:58.441+00:00","error":null,"lastVerifiedAt":"2026-11-15T20:44:58.441+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":"2026-11-15T20:44:14.4134166+00:00","lastSuccessAt":"2026-11-14T13:57:23.1208135+00:00","error":null,"lastVerifiedAt":"2026-11-15T20:44:14.4134166+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":"2026-11-15T20:44:13.8592897+00:00","lastSuccessAt":"2026-11-13T19:57:08.2864435+00:00","error":null,"lastVerifiedAt":"2026-11-15T20:44:13.8592897+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":"2026-11-15T20:44:14.44199+00:00","lastSuccessAt":"2026-11-15T11:05:17.1034234+00:00","error":null,"lastVerifiedAt":"2026-11-15T20:44:14.44199+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":"2026-11-15T20:44:14.2324599+00:00","lastSuccessAt":"2026-11-15T11:05:10.4195883+00:00","error":null,"lastVerifiedAt":"2026-11-15T20:44:14.2324599+00:00","snapshotPublishedAt":"2026-11-15T10:33:06+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}