CVE-2026-4176
Description
A flaw was found in Perl, stemming from its inclusion of an outdated Compress::Raw::Zlib module. This module bundles a vulnerable version of the zlib library, which is known to contain multiple security flaws, including CVE-2026-3381 and CVE-2026-27171. Exploitation of these underlying vulnerabilities could lead to various security impacts, depending on the specific flaw within zlib.
Statement
This is an Important vulnerability affecting Red Hat Enterprise Linux and OpenShift Container Platform. The Perl package includes an outdated Compress::Raw::Zlib module, which bundles a vulnerable version of the zlib library. Exploitation of the underlying zlib flaws could lead to various security impacts, depending on the flaw exploited. The general impact is tied to the same impact as the original flaw being exploited.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7 | N/A | 9.8 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | High | N/A | Low |
| Privileges Required | None | N/A | None |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | Low | N/A | High |
| Integrity Impact | Low | N/A | High |
| Availability Impact | High | N/A | High |
Vector
Red Hat: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
cve.org: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Understanding the Weakness (CWE)
Other
Technical Impact: Reduce Maintainability; Varies by Context
Relying on unmaintained components makes it difficult or impossible to fix significant bugs and vulnerabilities, can render code obsolete, and undermine security by complicating maintenance and increasing the risk of new vulnerabilities.
Frequently Asked Questions
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