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CVE

CVE-2026-3304

Multer vulnerable to Denial of Service via incomplete cleanup
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CVE

CVE-2026-3304

Multer vulnerable to Denial of Service via incomplete cleanup

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

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
8.7
-
4.0
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
C
H
U
0
-
C
H
U
7.5
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Related Resources

No items found.

References

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

Severity

7.5

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
7.5
EPSS Probability
0.00019%
EPSS Percentile
0.05517%
Introduced Version
0,1.0.0
Fix Available
2.1.0,0.8.2-r7,3.2.0-r1

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