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.
https://shibboleth.atlassian.net/wiki/spaces/DEV/pages/3726671873/Santuario
https://santuario.apache.org/download.html
https://lists.apache.org/thread/po2gocnw4gtf4boy5mmjb54g62qhbrl9
https://github.com/zmanion/Vulnerabilities/blob/main/CVE-2024-21893.md