CVE-2026-76169
1 advisory.
npm/fastify CVE-2026-76169: high 7.5, EPSS 0.53%
fastify vulnerable to authentication bypass via malformed URLs reaching encapsulated not-found handlers
Action: Upgrade fastify to 5.12.2 or later.
npm i fastify@5.12.2Affected
| introduced | fixed | last affected |
|---|---|---|
| 4.0.0 | 5.12.2 | - |
Fixed versions
| 5.12.2 |
Sources
- osv: GHSA-p68q-wchp-6fh7
- https://github.com/fastify/fastify/security/advisories/GHSA-p68q-wchp-6fh7
- https://nvd.nist.gov/vuln/detail/CVE-2026-76169
- https://github.com/fastify/fastify/commit/93c239a380f3f2778bb7565fcdf777e91cfe1fbc
- https://cna.openjsf.org/security-advisories.html
- https://github.com/fastify/fastify
- https://github.com/fastify/fastify/releases/tag/v5.12.2
CVE-2026-76169 · published · modified · JSON