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Vulnerability DatabaseCVE-2025-45770
CVE-2025-45770:
Linux Debian vulnerability analysis and mitigation
Overview
The vulnerability CVE-2025-45770 affects jwt v5.4.3 and earlier versions, which was discovered to contain weak encryption implementation. The issue was identified in the JSON Web Token (JWS) implementation where the HMAC and RSA key lengths did not meet recommended security standards according to RFC 7518, NIST SP800-117, and RFC 2437 (GitHub Advisory).
Technical details
The vulnerability is classified under CWE-326 (Inadequate Encryption Strength), where the implementation uses cryptographic keys that are too short, failing to meet recommended security standards. The affected component is the php-lcobucci-jwt package, specifically versions 5.4.3 and earlier (Debian Tracker).
Impact
The use of insufficient key lengths in the JWT implementation could potentially lead to serious vulnerabilities and attacks, compromising the security of applications using this library for authentication and authorization purposes (GitHub Advisory).
Mitigation and workarounds
Users are advised to upgrade to version 5.5.0 or later, which has addressed the weak encryption vulnerability. The fix was released on January 28, 2025 (GitHub JWT).
Additional resources
Source: This report was generated using AI
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