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CVE-2025-21617

by Fred · 06/01/2025

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.

More information : https://github.com/guzzle/oauth-subscriber/blob/0.8.0/src/Oauth1.php#L192

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