CVE-2025-31335

Summary

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).

Affected Software

Weaknesses

• CWE-347: CWE-347 Improper Verification of Cryptographic Signature

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

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

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