SB20260427156 - Uncontrolled Recursion in multer
Published: April 27, 2026
Security Bulletin ID
SB20260427156
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Uncontrolled Recursion (CVE-ID: CVE-2026-3520)
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to uncontrolled recursion in multer when handling malformed requests. A remote attacker can send a specially crafted request to cause a denial of service.
The issue may result in stack overflow.
Remediation
Install update from vendor's website.