CVSS 3.1
8.4 highCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2023-51774
High (8.4) in json-jwt project json-jwt. EPSS 0.2% chance of exploitation in the next 30 days. Fixed in json-jwt 1.15.3.1, 1.16.6.
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.
Severity
- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 13% of CVEs (scores of 2026-10-31)
- CWE
- CWE-284
- Published
- Modified
- Record from
- the NVD, synced
Affected
- json-jwt_project:json-jwt
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-c8v6-786g-vjx6 | RubyGems | json-jwt | >=1.16.0 <1.16.6 | 1.16.6 |
| GHSA-c8v6-786g-vjx6 | RubyGems | json-jwt | <1.15.3.1 | 1.15.3.1 |