Exploit for jwt_tool CVE-2015-2951 CVE-2016-10555 CVE-2018-0114 CVE-2019-20933 CVE-2020-28042 CVE-2020-28637 C

JWT Tool for Testing, Tweaking and Cracking JSON Web Tokens. Toolkit includes features such as validating token, testing for RS/HS256 key mismatch vulnerability, identifying weak keys, and forging new token header and payload values

Published 9 Sep 2026Updated 9 Sep 202615 sources
CVSS 9.8 PoC CANDIDATE

What happened

JWT Tool for Testing, Tweaking and Cracking JSON Web Tokens. Toolkit includes features such as validating token, testing for RS/HS256 key mismatch vulnerability, identifying weak keys, and forging new token header and payload values

Affected versions

Unknown product: See original advisory Fixed: See vendor advisory.

Why it matters

This source correlation may provide earlier visibility while structured CVE metadata is still being updated.

Detection & mitigation

  • Review the original advisory and validate affected versions.
  • Apply vendor-provided updates or mitigations when available.

Public PoC references