SB2026042821 - Infinite loop in file-type
Published: April 28, 2026
Security Bulletin ID
SB2026042821
CSH 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 vulnerability.
1) Infinite loop (CVE-ID: CVE-2026-31808)
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to an infinite loop in the ASF file type detection parser when parsing a crafted ASF input with a zero-size sub-header. A remote attacker can supply a specially crafted 55-byte payload to cause a denial of service.
The issue can stall the Node.js event loop while processing untrusted or attacker-controlled input.
Remediation
Install update from vendor's website.