Vulnerability in Fastify Fastify-Websocket
CVE-2022-39386
@fastify/websocket provides WebSocket support for Fastify. Any application using @fastify/websocket could crash if a specific, malformed packet is sent. All versions of fastify-websocket are also impacted. That module is deprecated, so it will not be patched. This has been patched in version 7.1.1 (fastify v4) and version 5.0.1 (fastify v3). There are currently no known workarounds. However, it should be possible to attach the error handler manually. The recommended path is upgrading to the patched versions.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.008 (54.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: +0.000
Affected products
- Fastify Fastify-Websocket — versions >= 5.0.0, < 5.0.1, >= 6.0.0, < 7.1.1, <= 4.3.0
- Fastify Websocket — versions 5.0.0
Weakness classification (CWE)
References
- github.com/fastify/fastify-websocket/security/advisories/GHSA-4pcg-wr6c-h9cq (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-39386?
- CVE-2022-39386 is a high-severity vulnerability in Fastify Fastify-Websocket, classified under CWE-248. CVSS score: 7.5/10. Published 2022-11-08.
- How severe is CVE-2022-39386?
- High severity. CVSS v3 base score is 7.5 out of 10.