CVE-2026-7263

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 v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/php/php-src/security/advisories/GHSA-4jhr-8w89-j733	Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:22649
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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:php:php::::::::
	cpe:2.3:a:php:php::::::::

History

No history.

Information

Published : 2026-05-10 06:16

Updated : 2026-07-24 08:10

NVD link : CVE-2026-7263

Mitre link : CVE-2026-7263

CVE.ORG link : CVE-2026-7263

JSON object : View

Products Affected

php

php

CWE

CWE-404

Improper Resource Shutdown or Release

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

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"packageName": "php", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:7"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "packageName": "php", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:8"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "packageName": "php:7.4/php", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:8"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "packageName": "php:8.2/php", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:9"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", 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"https://github.com/php/php-src/security/advisories/GHSA-4jhr-8w89-j733", "tags": ["Vendor Advisory"], "source": "security@php.net"}, {"url": "https://access.redhat.com/errata/RHSA-2026:22649", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-7263", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468572", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-7263.json", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "security@php.net", "description": [{"lang": "en", "value": "CWE-404"}, {"lang": "en", "value": "CWE-835"}]}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "description": [{"lang": "en", "value": "CWE-835"}]}], "descriptions": [{"lang": "en", "value": "In PHP versions 8.4.* before 8.4.21 and 8.5.* before 8.5.6, DOMNode::C14N()\u00a0method 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."}, {"lang": "es", "value": "En versiones de PHP 8.4.* anteriores a la 8.4.21 y 8.5.* anteriores a la 8.5.6, el m\u00e9todo DOMNode::C14N() puede procesar los datos XML incorrectamente, causando una lista enlazada circular en la estructura de datos que representa el documento XML. Esto puede causar que el procesamiento posterior del documento XML entre en un bucle infinito, causando denegaci\u00f3n de servicio en la aplicaci\u00f3n de procesamiento."}], "lastModified": "2026-07-24T08:10:00.150", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BA663C03-392C-41CC-BD11-4A1245203C42", "versionEndExcluding": "8.4.21", "versionStartIncluding": "8.4.0"}, {"criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6101DA12-5AA1-4882-A52A-61FB74254F9A", "versionEndExcluding": "8.5.6", "versionStartIncluding": "8.5.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@php.net"}