本ページは json-jwt_project json-jwt に影響する公開済み CVE（NVD の CPE 経由で関連付け）を列挙します。各行に深刻度指標・概要・公開日が含まれます。
| CVE | 概要 | ソース | CVSS 最大値 | EPSS（%） | 公開 | 更新 |
|---|---|---|---|---|---|---|
| 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. For example, JWE can sometimes be used to bypass JSON::JWT.decode. | [email protected] | 8.4 | 0.23% | 2024-02-28 | 2026-06-17 |
| CVE-2019-18848 | The json-jwt gem before 1.11.0 for Ruby lacks an element count during the splitting of a JWE string. | [email protected] | 7.5 | 1.26% | 2019-11-12 | 2026-06-16 |
| CVE-2018-1000539 | Nov json-jwt version >= 0.5.0 && < 1.9.4 contains a CWE-347: Improper Verification of Cryptographic Signature vulnerability in Decryption of AES-GCM encrypted JSON Web Tokens that can result in Attacker can forge a authentication tag. This attack appear to be exploitable via network connectivity. This vulnerability appears to have been fixed in 1.9.4 and later. | [email protected] | 5.3 | 0.78% | 2018-06-26 | 2026-06-16 |