Description
fastify is a fast and low overhead web framework, for Node.js. Affected versions of fastify are subject to a denial of service via malicious use of the Content-Type header. An attacker can send an invalid Content-Type header that can cause the application to crash. This issue has been addressed in commit `fbb07e8d` and will be included in release version 4.8.1. Users are advised to upgrade. Users unable to upgrade may manually filter out http content with malicious Content-Type headers.
References (3)
Core 3
Core References
Patch, Third Party Advisory
https://github.com/fastify/fastify/commit/fbb07e8dfad74c69cd4cd2211aedab87194618e3
Mitigation, Third Party Advisory
https://github.com/fastify/fastify/security/advisories/GHSA-455w-c45v-86rg
Third Party Advisory
https://github.com/fastify/fastify/security/policy
Scores
CVSS v3
7.5
EPSS
0.0629
EPSS Percentile
91.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-754
Status
published
Products (2)
fastify/fastify
< 4.8.1
npm/fastify
4.0.0 - 4.8.1npm
Published
Oct 10, 2022
Tracked Since
Feb 18, 2026