CVE-2021-43801
HIGH7.5EPSS 0.37%Uncaught Exception in mercurius
Published: 12/13/2021Modified: 3/13/2026
Also known as:GHSA-273r-rm8g-7f3x
Description
### Impact Any users from [email protected] to 8.11.1 are subjected to a denial of service attack by sending a malformed JSON to `/graphql` unless they are using a custom error handler. ### Patches The vulnerability has been fixed in https://github.com/mercurius-js/mercurius/pull/678 and shipped as v8.11.2. ### Workarounds Use a custom error handler. ### References See https://github.com/mercurius-js/mercurius/issues/677 ### For more information If you have any questions or comments about this advisory: * Open an issue in https://github.com/mercurius-js/mercurius * Email us at [[email protected]](mailto:[email protected])
Affected packages (1)
- npm/mercurius>= 8.10.0, < 8.11.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References (5)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2021-43801
- PATCHhttps://github.com/mercurius-js/mercurius
- WEBhttps://github.com/mercurius-js/mercurius/issues/677
- WEBhttps://github.com/mercurius-js/mercurius/pull/678/commits/732b2f895312da8deadd7b173dcd2d141d54b223
- WEBhttps://github.com/mercurius-js/mercurius/security/advisories/GHSA-273r-rm8g-7f3x