CVE-2026-91765

Description

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 Vector

References

• https://github.com/php/php-src/security/advisories/GHSA-rgrp-mwpx-f6rm