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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
SHAY perl
Default version status: unaffected
5.9.4 to < 5.40.4-RC1affected5.41.0 to < 5.42.2-RC1affected5.43.0 to < 5.43.9affected
References
- https://www.cve.org/CVERecord?id=CVE-2026-3381 ↗
- https://lists.security.metacpan.org/cve-announce/msg/37638919/ ↗
- https://github.com/Perl/perl5/commit/c75ae9cc164205e1b6d6dbd57bd2c65c8593fe94 ↗
- https://metacpan.org/release/PMQS/Compress-Raw-Zlib-2.221/source/Changes ↗
- https://metacpan.org/release/SHAY/perl-5.40.4/changes ↗
- https://metacpan.org/release/SHAY/perl-5.42.2/changes ↗
- http://www.openwall.com/lists/oss-security/2026/03/30/2 ↗