Description

jwe is a Ruby implementation of the RFC 7516 JSON Web Encryption (JWE) standard. In versions 1.1.0 and below, authentication tags of encrypted JWEs can be brute forced, which may result in loss of confidentiality for those JWEs and provide ways to craft arbitrary JWEs. This puts users at risk because JWEs can be modified to decrypt to an arbitrary value, decrypted by observing parsing differences and the GCM internal GHASH key can be recovered. Users are affected by this vulnerability even if they do not use an AES-GCM encryption algorithm for their JWEs. As the GHASH key may have been leaked, users must rotate the encryption keys after upgrading. This issue is fixed in version 1.1.1.

INFO

Published Date :

2025-08-08T00:06:20.021Z

Last Modified :

2025-08-08T16:43:15.548Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2025-54887 vulnerability.

Vendors Products
Ruby-jwe Project
  • Ruby-jwe
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-54887.

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact