CVE-2021-43801
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-43801
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-43801.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-43801
- Aliases
- Related
- Published
- 2021-12-13T20:15:07.577Z
- Modified
- 2025-11-14T12:36:14.460814Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
Mercurius is a GraphQL adapter for Fastify. Any users from Mercurius@8.10.0 to 8.11.1 are subjected to a denial of service attack by sending a malformed JSON to
/graphqlunless they are using a custom error handler. The vulnerability has been fixed in https://github.com/mercurius-js/mercurius/pull/678 and shipped as v8.11.2. As a workaround users may use a custom error handler. - References