Guzzle OAuth Subscriber has insufficient nonce entropy
ImpactNonce 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.PatchesUpgrade to version 0.8.1 or higher.WorkaroundsNo.ReferencesIssue is similar to https://nvd.nist.gov/vuln/detail/CVE-2025-22376.