CVE-2025-31335

CVSS 4 MEDIUMEPSS 0.2%CWE-347

The OpenSAML C++ library before 3.3.1 allows forging of signed SAML messages via parameter manipulation (when using SAML bindings that rely on non-XML signatures).

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N

Affected products

Shibboleth · OpenSAML C++ library

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References

https://git.shibboleth.net/view/?p=cpp-opensaml.git;a=commit;h=22a610b322e2178abd03e97cdbc8fb50b45efaee https://lists.debian.org/debian-security-announce/2025/msg00041.html https://shibboleth.atlassian.net/browse/CPPOST-126 https://shibboleth.net/community/advisories/secadv_20250313.txt