CVE-2026-91765

cleanup_xml_node() in the SOAP XML parser recurses once per XML nesting level with no depth limit. An unauthenticated attacker can post a SOAP request containing tens of thousands of nested elements to any SoapServer endpoint, exhaust the stack and crash the process. The same unbounded recursion exists in the SOAP value decoder and in the WSDL node search helper.

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-rgrp-mwpx-f6rm	Vendor Advisory Exploit

Configurations

Configuration 1 (hide)

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

History

23 Oct 2026, 13:49

Type	Values Removed	Values Added
References	~~() https://github.com/php/php-src/security/advisories/GHSA-rgrp-mwpx-f6rm -~~	() https://github.com/php/php-src/security/advisories/GHSA-rgrp-mwpx-f6rm - Vendor Advisory, Exploit
First Time		Php php Php
CPE		cpe:2.3:a:php:php::::::::

25 Sep 2026, 21:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-25 21:17

Updated : 2026-10-23 13:49

NVD link : CVE-2026-91765

Mitre link : CVE-2026-91765

CVE.ORG link : CVE-2026-91765

JSON object : View

Products Affected

php

php

CWE

CWE-674

Uncontrolled Recursion

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