Uncontrolled Recursion Affecting multer package, versions <2.1.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-MULTER-15417528
- published5 Mar 2026
- disclosed4 Mar 2026
- creditYuki Matsuhashi
Introduced: 4 Mar 2026
NewCVE-2026-3520 (opens in a new tab)How to fix?
Upgrade multer to version 2.1.1 or higher.
Overview
Affected versions of this package are vulnerable to Uncontrolled Recursion. An attacker can cause the application to crash or become unresponsive by sending malformed requests that trigger uncontrolled recursion, potentially leading to a stack overflow.