CVE-2026-113872 Multer - Denial of Service

Multer 2.0.0 to before 2.5.0 contains a denial of service caused by asynchronous fileFilter callbacks resuming parsing streams after request abort, letting attackers crash the Node.js process, exploit requires asynchronous fileFilter usage.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
Proof of concept available
Authentication
Not required
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
22 October 2026
Updated
23 October 2026
Weakness
CWE-248

Vendor fix

Upgrade to multer version 2.5.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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