CVE-2026-4176

| EUVD-2026-17044 CRITICAL
2026-03-29 CPANSec GHSA-q2q4-jjp8-f6m3
9.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Analysis Generated
Mar 29, 2026 - 21:15 vuln.today
EUVD ID Assigned
Mar 29, 2026 - 21:15 euvd
EUVD-2026-17044
Patch Released
Mar 29, 2026 - 21:15 nvd
Patch available
CVE Published
Mar 29, 2026 - 20:50 nvd
CRITICAL 9.8

Tags

Information Disclosure

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.

Analysis

Perl versions 5.9.4-5.40.3, 5.41.0-5.42.1, and 5.43.0-5.43.8 bundle a vulnerable version of Compress::Raw::Zlib that inherits multiple information-disclosure vulnerabilities from a vendored zlib library, including CVE-2026-27171. Affected users running these Perl versions can experience data exposure through the bundled compression module. …

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Priority Score

49
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +49
POC: 0

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CVE-2026-4176 vulnerability details – vuln.today
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