CRITICALCVE-2026-4176Published Modified CNA CPANSec
CVE-2026-4176: 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
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.
Metrics
- CVSS v3.1
- 9.8
- Severity
- CRITICAL
- Fixed in
- 5.40.4-RC1
- Affected Products
- 1
Affected packages
- SHAY / perl< 5.40.4-RC1 (from 5.9.4) · < 5.42.2-RC1 (from 5.41.0) · < 5.43.9 (from 5.43.0)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H