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CVE-2025-21617

Guzzle OAuth Subscriber has insufficient nonce entropy

CVSS 6.3 MEDIUMEPSS 0.4%CWE-338
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.
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Productos afectados
guzzle · oauth-subscriber

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Referencias
https://github.com/guzzle/oauth-subscriber/blob/0.8.0/src/Oauth1.php#L192https://github.com/guzzle/oauth-subscriber/commit/92b619b03bd21396e51c62e6bce83467d2ce8f53https://github.com/guzzle/oauth-subscriber/releases/tag/0.8.1https://github.com/guzzle/oauth-subscriber/security/advisories/GHSA-237r-r8m4-4q88