# json-jwt (RubyGems) vulnerabilities

3 known vulnerabilities (1 high), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Registry: https://rubygems.org/gems/json-jwt

## Advisories (3)

### [CVE-2023-51774](https://cve.now/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.

- Severity: High 8.4
- Published: Dec 25, 2023
- Affected: from 1.16.0, fixed in 1.16.6; fixed in 1.15.3.1.

### [CVE-2019-18848](https://cve.now/CVE-2019-18848): The json-jwt gem before 1.11.0 for Ruby lacks an element count during the splitting of a JWE string.

- Severity: Unrated
- Published: Nov 12, 2019
- Affected: fixed in 1.11.0.

### [CVE-2018-1000539](https://cve.now/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…

- Severity: Unrated
- Published: Jun 26, 2018
- Affected: from 0.5.1, fixed in 1.9.4.

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