CVE-2026-3419
1 advisory.
npm/fastify CVE-2026-3419: medium 5.3, EPSS 0.51%
Fastify's Missing End Anchor in "subtypeNameReg" Allows Malformed Content-Types to Pass Validation
Action: Upgrade fastify to 5.8.1 or later.
npm i fastify@5.8.1Affected
| introduced | fixed | last affected |
|---|---|---|
| 5.7.2 | 5.8.1 | - |
Fixed versions
| 5.8.1 |
Sources
- osv: GHSA-573f-x89g-hqp9
- https://github.com/fastify/fastify/security/advisories/GHSA-573f-x89g-hqp9
- https://nvd.nist.gov/vuln/detail/CVE-2026-3419
- https://github.com/fastify/fastify/commit/67f6c9b32cb3623d3c9470cc17ed830dd2f083d7
- https://cna.openjsf.org/security-advisories.html
- https://github.com/advisories/GHSA-573f-x89g-hqp9
- https://github.com/fastify/fastify
- https://httpwg.org/specs/rfc9110.html#field.content-type
- https://www.cve.org/CVERecord?id=CVE-2026-3419
CVE-2026-3419 · published · modified · JSON