CVE-2026-84504
1 advisory.
npm/fastify CVE-2026-84504: high 8.1
fastify vulnerable to request body replacement via an async validation result collision
Action: Upgrade fastify to 5.12.2 or later.
npm i fastify@5.12.2Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 5.12.2 | - |
Fixed versions
| 5.12.2 |
Sources
- osv: GHSA-667r-xxjv-c9mm
- https://github.com/fastify/fastify/security/advisories/GHSA-667r-xxjv-c9mm
- https://nvd.nist.gov/vuln/detail/CVE-2026-84504
- https://github.com/fastify/fastify/commit/f02d8d4ab1ab208f10819c4dc213595b06497833
- https://cna.openjsf.org/security-advisories.html
- https://github.com/fastify/fastify
- https://github.com/fastify/fastify/releases/tag/v5.12.2
CVE-2026-84504 · published · modified · JSON