Medium severity6.9NVD Advisory· Published Mar 3, 2025· Updated Apr 15, 2026

CVE-2025-27371

Description

In certain IETF OAuth 2.0-related specifications, when the JSON Web Token Profile for OAuth 2.0 Client Authentication mechanism is used, there are ambiguities in the audience values of JWTs sent to authorization servers. The affected RFCs may include RFC 7523, and also RFC 7521, RFC 7522, RFC 9101 (JAR), and RFC 9126 (PAR).

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

eprint.iacr.org/2025/629nvd
github.com/OWASP/ASVS/issues/2678nvd
openid.net/notice-of-a-security-vulnerability/nvd
openid.net/wp-content/uploads/2025/01/OIDF-Responsible-Disclosure-Notice-on-Security-Vulnerability-for-private_key_jwt.pdfnvd
talks.secworkshop.events/osw2025/talk/R8D9BS/nvd

News mentions

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cvss	0.449
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000