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CVE-2026-4176 Detail

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.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/Perl/perl5/commit/c75ae9cc164205e1b6d6dbd57bd2c65c8593fe94 CPANSec
https://lists.security.metacpan.org/cve-announce/msg/37638919/ CPANSec
https://metacpan.org/release/PMQS/Compress-Raw-Zlib-2.221/source/Changes CPANSec
https://metacpan.org/release/SHAY/perl-5.40.4/changes CPANSec
https://metacpan.org/release/SHAY/perl-5.42.2/changes CPANSec
https://www.cve.org/CVERecord?id=CVE-2026-3381 CPANSec

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-4176
NVD Published Date:
03/29/2026
NVD Last Modified:
03/29/2026
Source:
CPANSec