CVE-2026-33807
1 advisory.
npm/@fastify/express CVE-2026-33807: critical 9.1, EPSS 0.53%
@fastify/express's middleware path doubling causes authentication bypass in child plugin scopes
Action: Upgrade @fastify/express to 4.0.5 or later.
npm i @fastify/express@4.0.5Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 4.0.5 | - |
Fixed versions
| 4.0.5 |
Sources
- osv: GHSA-hrwm-hgmj-7p9c
- https://github.com/fastify/fastify-express/security/advisories/GHSA-hrwm-hgmj-7p9c
- https://nvd.nist.gov/vuln/detail/CVE-2026-33807
- https://cna.openjsf.org/security-advisories.html
- https://github.com/fastify/fastify-express
CVE-2026-33807 · published · modified · JSON