Bug 2468572 (CVE-2026-7263) - CVE-2026-7263 php: denial of service via DOMNode::C14N()
Summary: CVE-2026-7263 php: denial of service via DOMNode::C14N()
Keywords:
Status: NEW
Alias: CVE-2026-7263
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-10 06:01 UTC by OSIDB Bzimport
Modified: 2026-06-02 22:08 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:22649 0 None None None 2026-06-02 22:08:02 UTC

Description OSIDB Bzimport 2026-05-10 06:01:22 UTC 
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.
Comment 2 errata-xmlrpc 2026-06-02 22:08:01 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:22649 https://access.redhat.com/errata/RHSA-2026:22649
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