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CVE-2026-7263

CVE-2026-7263 · DoS attack via DOMNode::C14N()

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 6.3 · Medium · EPSS 0.4% · Fix available

Published
Updated

Stack: system · php

Affected products and versions

  • php

    Versions
    • ≥ 8.4.*, < 8.4.21: Affected (semver)
    • ≥ 8.5.*, < 8.5.6: Affected (semver)

    Update to 8.4.21; Update to 8.5.6

  • php8.4 Debian:13

    Versions
    • 8.4.11-1
    • 8.4.16-1
    • 8.4.16-1~deb13u1
    • 8.4.20-1
    Affected ranges
    • ECOSYSTEM: < 8.4.21-1~deb13u1

    Update to 8.4.21-1~deb13u1

  • php8.4 Debian:14

    Versions
    • 8.4.11-1
    • 8.4.16-1
    • 8.4.16-1~deb13u1
    • 8.4.20-1
    • 8.4.21-1~deb13u1
    Affected ranges
    • ECOSYSTEM: < 8.4.21-1

    Update to 8.4.21-1

  • php8.5 Ubuntu:26.04:LTS

    Versions
    • 8.5.2-0ubuntu1
    • 8.5.4-0ubuntu1
    Affected ranges
    • ECOSYSTEM: < 8.5.4-0ubuntu1.1

    Update to 8.5.4-0ubuntu1.1

Original sources

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