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CVE-2026-4176

Published: Mar 29, 2026

Modified: Mar 30, 2026

PUBLISHED

Description

Perl versions from 5.9.4 before 5.40.4-RC1, from 5.41.0 before 5.42.2-RC1, from 5.43.0 before 5.43.9 contain a vulnerable version of Compress::Raw::Zlib. Compress::Raw::Zlib is included in the Perl package as a dual-life core module, and is vulnerable to CVE-2026-3381 due to a vendored version of zlib which has several vulnerabilities, including CVE-2026-27171. The bundled Compress::Raw::Zlib was updated to version 2.221 in Perl blead commit c75ae9cc164205e1b6d6dbd57bd2c65c8593fe94.

Vendor	Product	Versions
SHAY	perl	affected `5.9.4 - < 5.40.4-RC1` affected `5.41.0 - < 5.42.2-RC1` affected `5.43.0 - < 5.43.9`

Weaknesses (CWE)

References

https://www.cve.org/CVERecord?id=CVE-2026-3381

vendor-advisory

related

vdb-entry

https://lists.security.metacpan.org/cve-announce/msg/37638919/

vendor-advisory

https://github.com/Perl/perl5/commit/c75ae9cc164205e1b6d6dbd57bd2c65c8593fe94

patch

https://metacpan.org/release/PMQS/Compress-Raw-Zlib-2.221/source/Changes

release-notes

https://metacpan.org/release/SHAY/perl-5.40.4/changes

release-notes

https://metacpan.org/release/SHAY/perl-5.42.2/changes

release-notes

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