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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
PHP Group PHP
Default version status: unaffected
8.4.* to < 8.4.21affected8.5.* to < 8.5.6affected
References
- https://github.com/php/php-src/security/advisories/GHSA-4jhr-8w89-j733 ↗
- https://access.redhat.com/security/cve/CVE-2026-7263 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=2468572 ↗
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-7263.json ↗
- https://access.redhat.com/errata/RHSA-2026:22649 ↗