SB2026031740 - Infinite loop in libarchive RAR5 implementation
Published: March 17, 2026
Security Bulletin ID
SB2026031740
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) Infinite loop (CVE-ID: CVE-2026-4111)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop in the RAR5 decompression implementation. A remote attacker can pass specially crafted compressed data to the application, consume all available system resources and cause denial of service conditions.
Remediation
Install update from vendor's website.