CVE-2022-39288
Affected versions of fastify are subject to a denial of service via malicious use of the Content-Type header.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 59.2%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 59.24% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-754
- Affected
- fastify/fastify
- Source
- security-advisories@github.com
EPSS 59.2% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/fastify/fastify/commit/fbb07e8dfad74c69cd4cd2211aedab87194618e3Patch, Third Party Advisory
- https://github.com/fastify/fastify/security/advisories/GHSA-455w-c45v-86rgMitigation, Third Party Advisory
- https://github.com/fastify/fastify/security/policyThird Party Advisory
- https://github.com/fastify/fastify/commit/fbb07e8dfad74c69cd4cd2211aedab87194618e3Patch, Third Party Advisory
- https://github.com/fastify/fastify/security/advisories/GHSA-455w-c45v-86rgMitigation, Third Party Advisory
- https://github.com/fastify/fastify/security/policyThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.