CVE-2026-7263

In PHP versions 8.4.* before 8.4.21 and 8.5.* before 8.5.6, DOMNode::C14N() method may process the XML data incorrectly, causing a circular linked list in the data structure representing the XML document. This may cause subsequent processing of the XML document to enter infinite loop, causing denial of service in the processing application.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/php/php-src/security/advisories/GHSA-4jhr-8w89-j733	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:php:php::::::::
	cpe:2.3:a:php:php::::::::

History

12 May 2026, 17:35

Type	Values Removed	Values Added
CPE		cpe:2.3:a:php:php::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5
First Time		Php Php php
References	~~() https://github.com/php/php-src/security/advisories/GHSA-4jhr-8w89-j733 -~~	() https://github.com/php/php-src/security/advisories/GHSA-4jhr-8w89-j733 - Vendor Advisory

10 May 2026, 06:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-10 06:16

Updated : 2026-05-12 17:35

NVD link : CVE-2026-7263

Mitre link : CVE-2026-7263

CVE.ORG link : CVE-2026-7263

JSON object : View

Products Affected

php

php

CWE

CWE-404

Improper Resource Shutdown or Release

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

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