{"id":"CVE-2026-88932","revision":null,"records":[{"revision":"fe2643cd460841659d633712b71b9eee","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-88932","aliases":[],"title":"multer vulnerable to Denial of Service via orphaned disk writes on aborted uploads","description":"multer is a Node.js middleware for handling multipart/form-data uploads. In versions 2.2.0 through 2.3.0, when a request using disk storage is aborted mid-upload, file writes that complete after multer has already run its abort cleanup are not removed, so each aborted upload can leave an orphaned file on disk. A remote unauthenticated attacker can repeatedly start and abort uploads to accumulate orphaned files and exhaust disk space, causing a denial of service. The issue is fixed in multer 2.4.0, and users should upgrade to 2.4.0 or later.","state":0,"publishedAt":"2026-09-14T08:46:12.896+00:00","modifiedAt":"2026-09-14T10:29:12.674+00:00","affected":[{"ecosystem":"Vendor product","name":"multer","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"multer\",\n                    \"product\": \"multer\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"versionType\": \"semver\",\n                            \"status\": \"affected\",\n                            \"version\": \"2.2.0\",\n                            \"lessThan\": \"2.4.0\"\n                        },\n                        {\n                            \"versionType\": \"semver\",\n                            \"status\": \"unaffected\",\n                            \"version\": \"2.4.0\"\n                        }\n                    ],\n                    \"packageURL\": \"pkg:npm/multer\"\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/expressjs/multer/security/advisories/GHSA-3pph-fpjx-jg34","https://cna.openjsf.org/security-advisories.html"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-88932","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-88932","identifiers":["CVE-2026-88932"]},"retained":false,"historicalAffected":[]},{"revision":"6fb8e90bc75c4e8db293419beb5689a0","observedAt":"2026-11-11T17:03:41.437+00:00","statement":{"source":"euvd","id":"EUVD-2026-77332","aliases":["CVE-2026-88932","GHSA-3pph-fpjx-jg34"],"title":"multer is a Node.js middleware for handling multipart/form-data uploads. In versions 2.2.0 through 2.3.0, when a request using disk storage is aborted mid-upload, file writes that complete after multer has already run its abort cleanup are …","description":"multer is a Node.js middleware for handling multipart/form-data uploads. In versions 2.2.0 through 2.3.0, when a request using disk storage is aborted mid-upload, file writes that complete after multer has already run its abort cleanup are not removed, so each aborted upload can leave an orphaned file on disk. A remote unauthenticated attacker can repeatedly start and abort uploads to accumulate orphaned files and exhaust disk space, causing a denial of service. The issue is fixed in multer 2.4.0, and users should upgrade to 2.4.0 or later.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3,"severity":null}],"references":["https://github.com/expressjs/multer/security/advisories/GHSA-3pph-fpjx-jg34","https://cna.openjsf.org/security-advisories.html"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-77332","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Sep 14, 2026, 8:46:12 AM","dateUpdated":"Sep 14, 2026, 10:29:12 AM"},"relatedAdvisories":[{"id":"RHSA-2026:72722","title":"Red Hat Security Advisory: Ansible plug-ins for Red Hat Developer Hub Product Release Update","vulnerabilityIds":["CVE-2026-19534","CVE-2026-47683","CVE-2026-55553","CVE-2026-56859","CVE-2026-59869","CVE-2026-82417","CVE-2026-84375","CVE-2026-87776","CVE-2026-88932","CVE-2026-89011","CVE-2026-92000","CVE-2026-92942","CVE-2026-92958","CVE-2026-92959","CVE-2026-92961"]},{"id":"RHSA-2026:76788","title":"Red Hat Security Advisory: Red Hat Developer Hub 1.10.5 Plugin Catalog GA plugins release.","vulnerabilityIds":["CVE-2026-13697","CVE-2026-19534","CVE-2026-47683","CVE-2026-47686","CVE-2026-47698","CVE-2026-55553","CVE-2026-75899","CVE-2026-75931","CVE-2026-75975","CVE-2026-76172","CVE-2026-77037","CVE-2026-77078","CVE-2026-77413","CVE-2026-77414","CVE-2026-77415","CVE-2026-82333","CVE-2026-82417","CVE-2026-84292","CVE-2026-84375","CVE-2026-84394","CVE-2026-84961","CVE-2026-87776","CVE-2026-88932","CVE-2026-89011","CVE-2026-92934","CVE-2026-92935","CVE-2026-92937","CVE-2026-92938","CVE-2026-92939","CVE-2026-92940","CVE-2026-92941","CVE-2026-92942","CVE-2026-92944","CVE-2026-92946","CVE-2026-92947","CVE-2026-92948","CVE-2026-92950","CVE-2026-92951","CVE-2026-92953","CVE-2026-92954","CVE-2026-92955","CVE-2026-92956","CVE-2026-92957","CVE-2026-92958","CVE-2026-92959","CVE-2026-92960","CVE-2026-92961","CVE-2026-93603","CVE-2026-93604","CVE-2026-93605","CVE-2026-93606"]},{"id":"RHSA-2026:79088","title":"Red Hat Security Advisory: Red Hat Developer Hub 1.10.5 release.","vulnerabilityIds":["CVE-2026-13697","CVE-2026-14456","CVE-2026-18798","CVE-2026-19534","CVE-2026-47683","CVE-2026-47686","CVE-2026-47698","CVE-2026-55553","CVE-2026-63072","CVE-2026-63076","CVE-2026-67213","CVE-2026-67214","CVE-2026-67422","CVE-2026-75899","CVE-2026-75931","CVE-2026-75975","CVE-2026-76172","CVE-2026-77037","CVE-2026-77078","CVE-2026-82333","CVE-2026-82417","CVE-2026-84292","CVE-2026-84375","CVE-2026-84394","CVE-2026-84445","CVE-2026-84961","CVE-2026-87776","CVE-2026-88932","CVE-2026-89011","CVE-2026-92934","CVE-2026-92935","CVE-2026-92937","CVE-2026-92938","CVE-2026-92939","CVE-2026-92940","CVE-2026-92941","CVE-2026-92942","CVE-2026-92944","CVE-2026-92946","CVE-2026-92947","CVE-2026-92948","CVE-2026-92950","CVE-2026-92951","CVE-2026-92953","CVE-2026-92954","CVE-2026-92955","CVE-2026-92956","CVE-2026-92957","CVE-2026-92958","CVE-2026-92959","CVE-2026-92960","CVE-2026-92961","CVE-2026-93603","CVE-2026-93604","CVE-2026-93605","CVE-2026-93606"]},{"id":"RHSA-2026:82151","title":"Red Hat Security Advisory: Ansible automation portal Red Hat Enterprise Linux Images","vulnerabilityIds":["CVE-2026-13697","CVE-2026-19534","CVE-2026-47683","CVE-2026-47686","CVE-2026-47698","CVE-2026-54284","CVE-2026-55553","CVE-2026-59893","CVE-2026-71491","CVE-2026-75899","CVE-2026-75931","CVE-2026-75975","CVE-2026-76172","CVE-2026-77037","CVE-2026-82333","CVE-2026-82417","CVE-2026-84292","CVE-2026-84375","CVE-2026-84394","CVE-2026-84961","CVE-2026-88932","CVE-2026-92934","CVE-2026-92935","CVE-2026-92937","CVE-2026-92938","CVE-2026-92939","CVE-2026-92940","CVE-2026-92941","CVE-2026-92942","CVE-2026-92944","CVE-2026-92946","CVE-2026-92947","CVE-2026-92948","CVE-2026-92950","CVE-2026-92951","CVE-2026-92953","CVE-2026-92954","CVE-2026-92955","CVE-2026-92956","CVE-2026-92957","CVE-2026-92958","CVE-2026-92959","CVE-2026-92960","CVE-2026-92961","CVE-2026-93603","CVE-2026-93604","CVE-2026-93605","CVE-2026-93606"]},{"id":"RHSA-2026:72712","title":"Red Hat Security Advisory: Ansible plug-ins for Red Hat Developer Hub Product Release Update","vulnerabilityIds":["CVE-2026-5038","CVE-2026-19534","CVE-2026-47683","CVE-2026-55553","CVE-2026-59869","CVE-2026-59879","CVE-2026-82417","CVE-2026-84375","CVE-2026-87776","CVE-2026-88932","CVE-2026-89011","CVE-2026-92000","CVE-2026-92942","CVE-2026-92958","CVE-2026-92959","CVE-2026-92961"]}],"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-2026-77332","identifiers":["EUVD-2026-77332","CVE-2026-88932","GHSA-3pph-fpjx-jg34"]},"retained":false,"historicalAffected":[]},{"revision":"94129ddea8e94b2fa1fa0941e34fadb2","observedAt":"2026-10-25T16:19:22.228+00:00","statement":{"source":"nvd","id":"CVE-2026-88932","aliases":[],"title":"multer is a Node.js middleware for handling multipart/form-data uploads. In versions 2.2.0 through 2.3.0, when a request using disk storage is aborted mid-upload, file writes that complete after multer has already run its abort cleanup are …","description":"multer is a Node.js middleware for handling multipart/form-data uploads. In versions 2.2.0 through 2.3.0, when a request using disk storage is aborted mid-upload, file writes that complete after multer has already run its abort cleanup are not removed, so each aborted upload can leave an orphaned file on disk. A remote unauthenticated attacker can repeatedly start and abort uploads to accumulate orphaned files and exhaust disk space, causing a denial of service. The issue is fixed in multer 2.4.0, and users should upgrade to 2.4.0 or later.","state":0,"publishedAt":"2026-09-14T09:17:01.63+00:00","modifiedAt":"2026-09-16T19:40:00.317+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · ce714d77-add3-4f53-aff5-83d477b104bb · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3,"severity":"MEDIUM"}],"references":["https://cna.openjsf.org/security-advisories.html","https://github.com/expressjs/multer/security/advisories/GHSA-3pph-fpjx-jg34"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-88932","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Awaiting Analysis","weaknesses":["CWE-400","CWE-459"],"productCriteria":[],"sourceDates":{"published":"2026-09-14T09:17:01.630","lastModified":"2026-09-16T19:40:00.317"},"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-2026-88932","identifiers":["CVE-2026-88932"]},"retained":false,"historicalAffected":[]},{"revision":"a598830f808e46bc9eb45f95701c13ab","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-3pph-fpjx-jg34","aliases":["CVE-2026-88932"],"title":"multer vulnerable to Denial of Service via orphaned disk writes on aborted uploads","description":"### Impact\n\nMulter's `diskStorage` can leave complete, orphaned files on disk when a multipart upload is aborted in the brief window before the storage engine assigns the file path. This is an incomplete fix of CVE-2026-5038: the earlier cleanup removes only in-flight uploads that already have a path, so an upload aborted inside that window is written to disk with nothing left to remove it, and the application is not given a handle to clean it up. An unauthenticated attacker sending aborted requests to any route backed by disk storage can accumulate orphaned files until the upload directory or the shared system temporary directory is exhausted. An asynchronous `destination` or `filename` widens the window.\n\n### Patches\n\nUsers should upgrade to `2.4.0` or higher.\n\n### Workarounds\n\nNone.","state":0,"publishedAt":"2026-09-28T21:34:58+00:00","modifiedAt":"2026-09-28T21:45:03.8694914+00:00","affected":[{"ecosystem":"npm","name":"multer","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"2.2.0"},{"kind":"fixed","version":"2.4.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/expressjs/multer/security/advisories/GHSA-3pph-fpjx-jg34","https://nvd.nist.gov/vuln/detail/CVE-2026-88932","https://github.com/expressjs/multer/commit/53337f9713619ef3381ee6b4e541f926dbaac305","https://cna.openjsf.org/security-advisories.html","https://github.com/expressjs/multer","https://github.com/expressjs/multer/releases/tag/v2.4.0"],"sourceUrl":"https://github.com/advisories/GHSA-3pph-fpjx-jg34","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-3pph-fpjx-jg34","identifiers":["GHSA-3pph-fpjx-jg34","CVE-2026-88932"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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