Description

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.

INFO

Published Date :

2025-07-13T22:10:15.996Z

Last Modified :

2025-11-04T21:14:48.898Z

Source :

php
AFFECTED PRODUCTS

The following products are affected by CVE-2025-6491 vulnerability.

Vendors Products
Php
  • Php
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-6491.

URL Resource
http://www.openwall.com/lists/oss-security/2025/07/11/4 cve-icon
https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x cve-icon cve-icon cve-icon cve-icon
https://lists.debian.org/debian-lts-announce/2025/07/msg00017.html cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-6491 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-6491 cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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