CVE-2025-21617

MEDIUM EPSS 35.4%
Published Jan 6, 20251y ago · Modified Jun 17, 20262w ago
6.3 CVSS 4.0
Medium
Find Similar
Published Jan 6, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
6.3
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
35.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-338

References 4

  • github.com https://github.com/guzzle/oauth-subscriber/blob/0.8.0/src/Oauth1.php#L192
  • github.com https://github.com/guzzle/oauth-subscriber/commit/92b619b03bd21396e51c62e6bce83467d2ce8f53
  • github.com https://github.com/guzzle/oauth-subscriber/releases/tag/0.8.1
  • github.com https://github.com/guzzle/oauth-subscriber/security/advisories/GHSA-237r-r8m4-4q88

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.