AIKIDO-2025-10435
multer is vulnerable to Uncaught Exception
75
High Risk
This Affects:
multerTL;DR
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 2.0.0 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 2.0.0 to receive a patch. No known workarounds are available.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
multer is vulnerable to Uncaught Exception in versions 1.4.4-lts.1 - 1.4.5-lts.2 and 1.4.4-lts.1 - 1.4.5-lts.1.
How to fix this
Upgrade the Multer library to the patch version.
Links
GitHub Release
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SOC 2Compliant
ISO 27001Compliant