CVE-2026-7263
DoS attack via DOMNode::C14N()
Description
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.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:NConfidentialityNone
I:NIntegrityNone
A:HAvailabilityHigh
Weaknesses
Affected Products
PHP Group
oss-projectaka php, pear
php
oss-project·USaka php language, pecl, pear
Exploitability
Official Patch Available
Attack Graph
Products CVE Techniques Tactics
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MITRE ATT&CK
1 technique Impact
References
https://github.com/php/php-src/security/advisories/GHSA-4jhr-8w89-j733
github.com
https://access.redhat.com/errata/RHSA-2026:22649
access.redhat.com
https://access.redhat.com/security/cve/CVE-2026-7263
access.redhat.com
and 2 more references View all →
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