CVE-2025-54887 is a critical vulnerability in the Ruby jwe library (versions 1.1.0 and below) that allows for brute-forcing of JWE authentication tags, leading to potential loss of confidentiality and the ability to craft arbitrary JWEs. This flaw, rated 9.1 CRITICAL, has a network attack vector and low attack complexity, enabling high impact to confidentiality and integrity. While there is no known active exploitation or public exploit code, the vulnerability has garnered community discussion, emphasizing the need for immediate upgrades to version 1.1.1 and encryption key rotation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Jwt | Ruby-Jwe | < 1.1.1CNA affected |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.