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CVE-2026-4176

Published: Mar 29, 2026Updated: Apr 22, 2026 Sources: CVE List NVDNVD-CWE-Other
9.8CRITICAL
NVD MITRE
EPSS Score
0.7%
Top 52.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

NVD-CWE-Other

Affected Products

perl
oss-project
perlLibraryLibrary
OSS Libraries / generic-library
SHAY
individual-dev
perlLibrary
OSS Libraries / generic-library

Exploitability

Official Patch Available
Workaround Available
Scannable·OpenVAS
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References

https://github.com/Perl/perl5/commit/c75ae9cc164205e1b6d6dbd57bd2c65c8593fe94
github.com
https://lists.security.metacpan.org/cve-announce/msg/37638919/
lists.security.metacpan.org
https://metacpan.org/release/PMQS/Compress-Raw-Zlib-2.221/source/Changes
metacpan.org
and 4 more references View all →
News mentions
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