SB2026031154 - Denial of service in Compress::Raw::Zlib
Published: March 11, 2026
Security Bulletin ID
SB2026031154
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) Resource exhaustion (CVE-ID: CVE-2026-3381)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to the application uses a vulnerable version of the zlib library (#VU123895, CVE-2026-27171). A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://7asecurity.com/blog/2026/02/zlib-7asecurity-audit/
- https://github.com/madler/zlib
- https://github.com/madler/zlib/releases/tag/v1.3.2
- https://github.com/pmqs/Compress-Raw-Zlib/issues/41
- https://metacpan.org/release/PMQS/Compress-Raw-Zlib-2.221/source/Changes
- https://www.cve.org/CVERecord?id=CVE-2026-27171
- https://www.zlib.net/