Multer vulnerable to Denial of Service via incomplete cleanup
cve-program · CVE-2026-3304
PublishedMulter 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 sending malformed requests, potentially causing resource exhaustion. Users should upgrade to version 2.1.0 to receive a patch. No known workarounds are available.
Read the publisher's advisoryeuvd · EUVD-2026-9033
PublishedMulter 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 sending malformed requests, potentially causing resource exhaustion. Users should upgrade to version 2.1.0 to receive a patch. No known workarounds are available.
Read the publisher's advisorynvd · CVE-2026-3304
PublishedMulter 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 sending malformed requests, potentially causing resource exhaustion. Users should upgrade to version 2.1.0 to receive a patch. No known workarounds are available.
Read the publisher's advisoryosv · GHSA-xf7r-hgr6-v32p
Published### Impact A vulnerability in Multer versions < 2.1.0 allows an attacker to trigger a Denial of Service (DoS) by sending malformed requests, potentially causing resource exhaustion. ### Patches Users should upgrade to `2.1.0` ### Workarounds None
Read the publisher's advisoryAffected versions, risk and source history
Related advisories and sources
Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.
CVE-2026-3304 · CVE overview and exploitation status
cve-program · CVE-2026-3304
- https://github.com/expressjs/multer/security/advisories/GHSA-xf7r-hgr6-v32p
- https://www.cve.org/CVERecord?id=CVE-2026-3304
- https://github.com/expressjs/multer/commit/739919097dde3921ec31b930e4b9025036fa74ee
- https://cna.openjsf.org/security-advisories.html
euvd · EUVD-2026-9033
- https://github.com/expressjs/multer/security/advisories/GHSA-xf7r-hgr6-v32p
- https://www.cve.org/CVERecord?id=CVE-2026-3304
- https://github.com/expressjs/multer/commit/739919097dde3921ec31b930e4b9025036fa74ee
- https://cna.openjsf.org/security-advisories.html
nvd · CVE-2026-3304
- https://cna.openjsf.org/security-advisories.html
- https://github.com/expressjs/multer/commit/739919097dde3921ec31b930e4b9025036fa74ee
- https://github.com/expressjs/multer/security/advisories/GHSA-xf7r-hgr6-v32p
- https://www.cve.org/CVERecord?id=CVE-2026-3304
- https://access.redhat.com/errata/RHSA-2026:6174
- https://access.redhat.com/errata/RHSA-2026:6802
- https://access.redhat.com/security/cve/CVE-2026-3304
- https://bugzilla.redhat.com/show_bug.cgi?id=2443353
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3304.json
osv · GHSA-xf7r-hgr6-v32p
- https://github.com/expressjs/multer/security/advisories/GHSA-xf7r-hgr6-v32p
- https://nvd.nist.gov/vuln/detail/CVE-2026-3304
- https://github.com/expressjs/multer/commit/739919097dde3921ec31b930e4b9025036fa74ee
- https://cna.openjsf.org/security-advisories.html
- https://github.com/expressjs/multer
- https://www.cve.org/CVERecord?id=CVE-2026-3304