Vulnerability in Mercurius-Js Mercurius
CVE-2023-22477
Mercurius is a GraphQL adapter for Fastify. Any users of Mercurius until version 10.5.0 are subjected to a denial of service attack by sending a malformed packet over WebSocket to `/graphql`. This issue was patched in #940. As a workaround, users can disable subscriptions.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.011 (63.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Mercurius-Js Mercurius — versions < 10.5.0
- Mercurius Project
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/mercurius-js/mercurius/security/advisories/GHSA-cm8h-q92v-xcfc (Patch, Third Party Advisory)
- github.com/mercurius-js/mercurius/issues/939 (Exploit, Third Party Advisory, Issue Tracking)
- github.com/mercurius-js/mercurius/pull/940 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-22477?
- CVE-2023-22477 is a medium-severity vulnerability in Mercurius-Js Mercurius, classified under CWE-248. CVSS score: 5.3/10. Published 2023-01-09.
- How severe is CVE-2023-22477?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2023-22477 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.