CVE-2023-51774

The json-jwt (aka JSON::JWT) gem 1.16.3 for Ruby sometimes allows bypass of identity checks via a sign/encryption confusion attack

High · published December 25, 2023

CVSS v3.1
8.4
EPSS
0%
Percentile
13.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.4 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00231 · 13.1th percentile
Published
2023-12-25T00:00Z
EPSS history
Timeline
  • 25 DEC 00:00Z
    The json-jwt (aka JSON::JWT) gem 1.16.3 for Ruby sometimes allows bypass of identity checks via a sign/encryption confusion attack
    cvelistv5