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CVE-2025-27371

MEDIUM

6.9

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).

CVE Details

CVSS v3.1 Score6.9

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionREQUIRED

Published3/3/2025

Last Modified4/25/2025

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-305

References

https://eprint.iacr.org/2025/629(cve@mitre.org)

https://github.com/OWASP/ASVS/issues/2678(cve@mitre.org)

https://openid.net/notice-of-a-security-vulnerability/(cve@mitre.org)

https://openid.net/wp-content/uploads/2025/01/OIDF-Responsible-Disclosure-Notice-on-Security-Vulnerability-for-private_key_jwt.pdf(cve@mitre.org)

https://talks.secworkshop.events/osw2025/talk/R8D9BS/(cve@mitre.org)

IOC Correlations

No correlations recorded

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