CVE-2026-3381criticalCWE-1395

CVE-2026-3381: critical vulnerability in PMQS Compress::Raw::Zlib

Compress::Raw::Zlib versions through 2.219 for Perl use potentially insecure versions of zlib

Published 05 Mar 2026 · Updated 11 Mar 2026

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28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.8epss 0.6%

Compress::Raw::Zlib versions through 2.219 for Perl use potentially insecure versions of zlib. Compress::Raw::Zlib includes a copy of the zlib library. Compress::Raw::Zlib version 2.220 includes zlib 1.3.2, which addresses findings fron the 7ASecurity audit of zlib. The includes fixs for CVE-2026-27171.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

PMQS · Compress::Raw::Zlib

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/