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. 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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/Perl/perl5/commit/c75ae9cc164205e1b6d6dbd57bd2c65c8593fe94	Patch
https://lists.security.metacpan.org/cve-announce/msg/37638919/	Third Party Advisory
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
https://www.cve.org/CVERecord?id=CVE-2026-3381	Third Party Advisory
http://www.openwall.com/lists/oss-security/2026/03/30/2	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:perl:perl::::::::
	cpe:2.3:a:perl:perl::::::::
	cpe:2.3:a:perl:perl::::::::

History

No history.

Information

Published : 2026-03-29 21:16

Updated : 2026-06-17 10:56

NVD link : CVE-2026-4176

Mitre link : CVE-2026-4176

CVE.ORG link : CVE-2026-4176

JSON object : View

Products Affected

perl

perl

CWE

NVD-CWE-Other

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