CVE Catalog

CVE-2026-91765

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.52%

43th percentile - higher than 43% of all known CVEs

Summary

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.

Risk Assessment

Risk of denial of service via remote stack exhaustion, potentially leading to application unavailability.

Recommendation

Upgrade the SOAP component to a version with recursion depth limits and implement request size limits.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS