CVE-2024-34580: Simplesamlphp XML-Security

Medium severity, CVSS 5.3. EPSS: 0.2% chance of exploitation in the next 30 days.

Apache XML Security for C++ through 2.0.4 implements the XML Signature Syntax and Processing (XMLDsig) specification without protection against an SSRF payload in a KeyInfo element. NOTE: the project disputes this CVE Record on the grounds that any vulnerabilities are the result of a failure to configure XML Security for C++ securely. Even when avoiding this particular issue, any use of this library would need considerable additional code and a deep understanding of the standards and protocols involved to arrive at a secure implementation for any particular use case. We recommend against continued direct use of this library.

Affected products

• Simplesamlphp XML-Security: up to and including 2.0.4

Published 2024-06-26. Last modified 2026-06-17.