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CVE-2026-91765

nvd nist
Published: Sep 25, 2026Modified: Oct 23, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: security@php.net (Secondary)

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.

Affected (4)

Products: Php: Php
Php
1 product
Php
Configuration A
4 vulnerable
Vulnerable SoftwareAffected Versions
Php
Php
8.2.0 ≤ version < 8.2.34
Php
8.3.0 ≤ version < 8.3.35
Php
8.4.0 ≤ version < 8.4.26
Php
8.5.0 ≤ version < 8.5.11

Related CWEs

CWE-674
Uncontrolled Recursion
The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.

References (1)

Source: security@php.net
Vendor AdvisoryExploit

Timeline

No history available yet.