NVD HIGH: CVE-2026-7263 — In PHP versions 8.4.* before 8.4.21 and 8.5.* before 8.5.6, DOMNode::C14N() meth...

Sunday, May 10, 2026 at 06:16 AM UTC·Source: NIST NVD

Updated: Thursday, May 14, 2026 at 11:01 PM UTC

Executive Summary

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.

Analysis

Indicators of Compromise (1)

CVE (1)

CVE-2026-7263

NVD MITRE CVE

Source Attribution

Originally published by NIST NVD on May 10, 2026. Verified by: NIST.

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