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.
History

Fri, 23 Oct 2026 14:00:00 +0000

Type Values Removed Values Added
First Time appeared Php
Php php
CPEs cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
Vendors & Products Php
Php php

Mon, 28 Sep 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 26 Sep 2026 10:30:00 +0000

Type Values Removed Values Added
First Time appeared Php Group
Php Group php
Vendors & Products Php Group
Php Group php

Sat, 26 Sep 2026 00:15:00 +0000

Type Values Removed Values Added
First Time appeared Redhat
Redhat hummingbird
Weaknesses CWE-770
CPEs cpe:/a:redhat:hummingbird:1
Vendors & Products Redhat
Redhat hummingbird
References
Metrics threat_severity

None

threat_severity

Important


Fri, 25 Sep 2026 20:45:00 +0000

Type Values Removed Values Added
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.
Title SOAP: Unbounded Recursion in Server-Side cleanup_xml_node
Weaknesses CWE-674
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: php

Published: 2026-09-25T20:33:03.634Z

Updated: 2026-09-28T13:31:32.047Z

Reserved: 2026-09-15T00:34:01.883Z

Link: CVE-2026-91765

cve-icon Vulnrichment

Updated: 2026-09-28T13:24:49.423Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-25T21:17:24.550

Modified: 2026-10-23T13:49:32.333

Link: CVE-2026-91765

cve-icon Redhat

Severity : Important

Publid Date: 2026-09-25T20:33:03Z

Links: CVE-2026-91765 - Bugzilla