Medium severityOSV Advisory· Published Jan 6, 2025· Updated Apr 15, 2026
CVE-2025-21617
CVE-2025-21617
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
guzzlehttp/oauth-subscriberPackagist | < 0.8.1 | 0.8.1 |
Affected products
2- Range: 0.1.0, 0.1.1, 0.1.2, …
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-237r-r8m4-4q88ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-21617ghsaADVISORY
- github.com/guzzle/oauth-subscriber/blob/0.8.0/src/Oauth1.phpnvdWEB
- github.com/guzzle/oauth-subscriber/commit/92b619b03bd21396e51c62e6bce83467d2ce8f53nvdWEB
- github.com/guzzle/oauth-subscriber/releases/tag/0.8.1nvdWEB
- github.com/guzzle/oauth-subscriber/security/advisories/GHSA-237r-r8m4-4q88nvdWEB
News mentions
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