fast-jwt
CriticalnpmCVE-2026-107722
What to do
Update fast-jwt to 6.3.0 or later.
npm install fast-jwt@6.3.0
A cryptographic weakness flaw affects the npm package fast-jwt. Affected versions: >= 6.2.0, <= 6.2.4. Fixed from version 6.3.0. CVSS score 9.8.
What the flaw allows: An encryption guarantee is weaker than advertised.
- Package
- fast-jwt
- Ecosystem
- npm (JavaScript)
- Class
- Cryptographic weakness
- Affected versions
- >= 6.2.0, <= 6.2.4
- CVSS
- 9.8
- Published on
- October 8, 2026
Sources
Entry built automatically from the cited security advisory, with no model rewriting. Acknowledged by the organisation or vendor, notified to an authority, or established by two independent sources.