Vulnerability DatabaseCVE-2026-7263
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CVE-2026-7263
Published:May 10, 2026
Updated:May 16, 2026
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.
Affected Packages
https://github.com/php/php-src.git (GITHUB):
Affected version(s) >=php-8.5.0 <php-8.5.6
Fix Suggestion:
Update to version php-8.5.6
https://github.com/php/php-src.git (GITHUB):
Affected version(s) >=php-8.4.0 <php-8.4.21
Fix Suggestion:
Update to version php-8.4.21
Related Resources (1)
https://github.com/php/php-src/security/advisories/GHSA-4jhr-8w89-j733
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CVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
LOW
CVSS v3
Base Score:
5.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Weakness Type (CWE)
Improper Resource Shutdown or Release
CWE-404
Loop with Unreachable Exit Condition ('Infinite Loop')
CWE-835
EPSS
Base Score:
0.06