CVE-2026-107722
1 advisory.
npm/fast-jwt CVE-2026-107722: critical 9.8, EPSS 0.27%
fast-jwt: Incomplete patch of CVE-2026-34950: Non-whitespace key-prefix re-enables RSA→HS256 algorithm confusion
Action: Upgrade fast-jwt to 6.3.0 or later.
npm i fast-jwt@6.3.0Affected
| introduced | fixed | last affected |
|---|---|---|
| 6.2.0 | 6.3.0 | - |
Fixed versions
| 6.3.0 |
Sources
- osv: GHSA-ww5h-9m49-7xx4
- https://github.com/nearform/fast-jwt/security/advisories/GHSA-ww5h-9m49-7xx4
- https://github.com/nearform/fast-jwt/pull/632
- https://github.com/nearform/fast-jwt/commit/d96bbc6c5336055a6dbfa318fdbab01197264cfa
- https://github.com/nearform/fast-jwt
- https://github.com/nearform/fast-jwt/releases/tag/v6.3.0
CVE-2026-107722 · published · modified · JSON