CVE-2023-51774

HIGH

json-jwt 1.16.0-1.16.5 - Identity Check Bypass via Sign/Encryption Confusion

Title source: llm
STIX 2.1

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.

References (1)

Core 1

Scores

CVSS v3 8.4
EPSS 0.0001
EPSS Percentile 1.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-284
Status published
Products (2)
json-jwt_project/json-jwt 1.16.3
rubygems/json-jwt 1.16.0 - 1.16.6RubyGems
Published Feb 29, 2024
Tracked Since Feb 18, 2026