GHSA-237r-r8m4-4q88Medium
Guzzle OAuth Subscriber has insufficient nonce entropy
🔗 CVE IDs covered (1)
📋 Description
Impact
Nonce generation does not use sufficient entropy nor a cryptographically secure pseudorandom source (https://github.com/guzzle/oauth-subscriber/blob/0.8.0/src/Oauth1.php#L192). This can leave servers vulnerable to replay attacks when TLS is not used.
Patches
Upgrade to version 0.8.1 or higher.
Workarounds
No.
References
Issue is similar to https://nvd.nist.gov/vuln/detail/CVE-2025-22376.
🎯 Affected products1
- composer/guzzlehttp/oauth-subscriber:< 0.8.1
🔗 References (7)
- https://github.com/guzzle/oauth-subscriber/security/advisories/GHSA-237r-r8m4-4q88
- https://github.com/guzzle/oauth-subscriber/commit/92b619b03bd21396e51c62e6bce83467d2ce8f53
- https://github.com/guzzle/oauth-subscriber/blob/0.8.0/src/Oauth1.php#L192
- https://github.com/guzzle/oauth-subscriber/releases/tag/0.8.1
- https://nvd.nist.gov/vuln/detail/CVE-2025-21617
- https://github.com/FriendsOfPHP/security-advisories/blob/master/guzzlehttp/oauth-subscriber/CVE-2025-21617.yaml
- https://github.com/advisories/GHSA-237r-r8m4-4q88