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.
History

Mon, 30 Mar 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 30 Mar 2026 07:15:00 +0000

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First Time appeared Shay
Shay perl
Vendors & Products Shay
Shay perl

Mon, 30 Mar 2026 06:30:00 +0000

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References

Sun, 29 Mar 2026 21:15:00 +0000

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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.
Title 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
Weaknesses CWE-1395
References

cve-icon MITRE

Status: PUBLISHED

Assigner: CPANSec

Published: 2026-03-29T20:50:51.058Z

Updated: 2026-03-30T15:35:08.162Z

Reserved: 2026-03-14T16:17:19.077Z

Link: CVE-2026-4176

cve-icon Vulnrichment

Updated: 2026-03-30T15:33:03.321Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-29T21:16:15.717

Modified: 2026-03-30T16:16:08.163

Link: CVE-2026-4176

cve-icon Redhat

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