{"id":"CVE-2026-2359","aliases":["GHSA-v52c-386h-88mc"],"url":"https://o3.security/vulnerability/CVE-2026-2359","summary":"Multer vulnerable to Denial of Service via resource exhaustion","details":"Multer is a node.js middleware for handling `multipart/form-data`. A vulnerability in Multer prior to version 2.1.0 allows an attacker to trigger a Denial of Service (DoS) by dropping connection during file upload, potentially causing resource exhaustion. Users should upgrade to version 2.1.0 to receive a patch. No known workarounds are available.","published":"2026-02-27T15:42:08.088Z","modified":"2026-08-12T03:51:37.289274534Z","cvss":null,"epss":{"score":0.00663,"percentile":0.50009,"asOf":"2026-09-16"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"multer","fixedVersion":"2.1.0"}],"fix":{"url":"https://github.com/expressjs/multer/commit/cccf0fe0e64150c4f42ccf6654165c0d66b9adab","label":"expressjs/multer@cccf0fe"},"references":[{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2359.json"},{"type":"WEB","url":"https://www.cve.org/CVERecord?id=CVE-2026-2359"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:6174"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:6802"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-2359"},{"type":"ADVISORY","url":"https://cna.openjsf.org/security-advisories.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/2xxx/CVE-2026-2359.json"},{"type":"ADVISORY","url":"https://github.com/expressjs/multer/security/advisories/GHSA-v52c-386h-88mc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-2359"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2443350"},{"type":"FIX","url":"https://github.com/expressjs/multer/commit/cccf0fe0e64150c4f42ccf6654165c0d66b9adab"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:37.289274534Z"}}