CVE-2022-41919 – fastify

Package

Manager: npm
Name: fastify
Vulnerable Version: >=4.0.0 <4.10.2 || >=3.0.0 <3.29.4

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00065 pctl0.20655

Details

Fastify: Incorrect Content-Type parsing can lead to CSRF attack ### Impact The attacker can use the incorrect `Content-Type` to bypass the `Pre-Flight` checking of `fetch`. `fetch()` requests with Content-Type’s [essence](https://mimesniff.spec.whatwg.org/#mime-type-essence) as "application/x-www-form-urlencoded", "multipart/form-data", or "text/plain", could potentially be used to invoke routes that only accepts `application/json` content type, thus bypassing any [CORS protection](https://fetch.spec.whatwg.org/#simple-header), and therefore they could lead to a Cross-Site Request Forgery attack. ### Patches For `4.x` users, please update to at least `4.10.2` For `3.x` users, please update to at least `3.29.4` ### Workarounds Implement Cross-Site Request Forgery protection using [`@fastify/csrf`](https://www.npmjs.com/package/@fastify/csrf). ### References Check out the HackerOne report: https://hackerone.com/reports/1763832. ### For more information [Fastify security policy](https://github.com/fastify/fastify/security/policy)

Metadata

Created: 2022-11-21T22:28:11Z
Modified: 2022-11-28T16:17:34Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/11/GHSA-3fjj-p79j-c9hh/GHSA-3fjj-p79j-c9hh.json
CWE IDs: ["CWE-352"]
Alternative ID: GHSA-3fjj-p79j-c9hh
Finding: F007
Auto approve: 1