CVE-2025-7338
Multer vulnerable to Denial of Service via unhandled exception from malformed request
7.5CVSSHIGH
Description
Multer is a node.js middleware for handling `multipart/form-data`. A vulnerability that is present starting in version 1.4.4-lts.1 and prior to version 2.0.2 allows an attacker to trigger a Denial of Service (DoS) by sending a malformed multi-part upload request. This request causes an unhandled exception, leading to a crash of the process. Users should upgrade to version 2.0.2 to receive a patch. No known workarounds are available.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:NConfidentialityNone
I:NIntegrityNone
A:HAvailabilityHigh
Weaknesses
Affected Products
Exploitability
Official Patch Available
References
https://cna.openjsf.org/security-advisories.html
cna.openjsf.org
https://github.com/expressjs/multer/commit/adfeaf669f0e7fe953eab191a762164a452d143b
github.com
https://github.com/expressjs/multer/security/advisories/GHSA-fjgf-rc76-4x9p
github.com
and 2 more references View all →
Timeline
Published
Jul 17, 2025
Last Updated
Jul 17, 2025
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