Vulnerability Description
Guzzle OAuth Subscriber signs Guzzle requests using OAuth 1.0. Prior to 0.8.1, Nonce generation does not use sufficient entropy nor a cryptographically secure pseudorandom source. This can leave servers vulnerable to replay attacks when TLS is not used. This vulnerability is fixed in 0.8.1.
Related Weaknesses (CWE)
References
- https://github.com/guzzle/oauth-subscriber/blob/0.8.0/src/Oauth1.php#L192
- https://github.com/guzzle/oauth-subscriber/commit/92b619b03bd21396e51c62e6bce834
- https://github.com/guzzle/oauth-subscriber/releases/tag/0.8.1
- https://github.com/guzzle/oauth-subscriber/security/advisories/GHSA-237r-r8m4-4q
FAQ
What is CVE-2025-21617?
CVE-2025-21617 is a documented vulnerability. Guzzle OAuth Subscriber signs Guzzle requests using OAuth 1.0. Prior to 0.8.1, Nonce generation does not use sufficient entropy nor a cryptographically secure pseudorandom source. This can leave serve...
How severe is CVE-2025-21617?
CVSS scoring is not yet available for CVE-2025-21617. Check NVD for updates.
Is there a patch for CVE-2025-21617?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.