VULNERABILITY INTELLIGENCE

CVE-2023-51774

CVSS score8.4 HIGH
EPSS probability0.23%
CISA KEVNot currently listed
Published2024-02-29
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

The json-jwt (aka JSON::JWT) gem 1.16.3 for Ruby sometimes allows bypass of identity checks via a sign/encryption confusion attack. For example, JWE can sometimes be used to bypass JSON::JWT.decode.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-284

Primary references