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.
Published: 2023-12-25
Score: 8.4 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Github GHSA Github GHSA GHSA-c8v6-786g-vjx6 json-jwt allows bypass of identity checks via a sign/encryption confusion attack
History

Fri, 27 Feb 2026 03:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:json-jwt_project:json-jwt:*:*:*:*:*:ruby:*:*
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 08 May 2025 23:15:00 +0000

Type Values Removed Values Added
First Time appeared Json-jwt Project
Json-jwt Project json-jwt
CPEs cpe:2.3:a:json-jwt_project:json-jwt:1.16.3:*:*:*:*:ruby:*:*
Vendors & Products Json-jwt Project
Json-jwt Project json-jwt

Mon, 26 Aug 2024 21:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N'}

cvssV3_1

{'score': 8.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Subscriptions

Json-jwt Project Json-jwt
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-26T20:08:16.108Z

Reserved: 2023-12-25T00:00:00.000Z

Link: CVE-2023-51774

cve-icon Vulnrichment

Updated: 2024-08-02T22:48:11.253Z

cve-icon NVD

Status : Analyzed

Published: 2024-02-29T01:42:05.597

Modified: 2025-05-08T22:48:00.990

Link: CVE-2023-51774

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-02-29T00:00:00Z

Links: CVE-2023-51774 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses