NULL Pointer Dereference Affecting php-pecl-zip package, versions <0:1.22.3-1.module+el9.6.0+22647+1741ae35


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.94% (57th percentile)

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  • Snyk IDSNYK-CENTOS9-PHPPECLZIP-14538816
  • published19 Dec 2025
  • disclosed5 Jul 2025

Introduced: 5 Jul 2025

CVE-2025-6491  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Centos:9 php-pecl-zip to version 0:1.22.3-1.module+el9.6.0+22647+1741ae35 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php-pecl-zip package and not the php-pecl-zip package as distributed by Centos. See How to fix? for Centos:9 relevant fixed versions and status.

In PHP versions:8.1.* before 8.1.33, 8.2.* before 8.2.29, 8.3.* before 8.3.23, 8.4.* before 8.4.10 when parsing XML data in SOAP extensions, overly large (>2Gb) XML namespace prefix may lead to null pointer dereference. This may lead to crashes and affect the availability of the target server.

CVSS Base Scores

version 3.1