CVE-2021-43801
Uncaught Exception in mercurius
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])
How to fix CVE-2021-43801
To remediate CVE-2021-43801, upgrade the affected package to a fixed version below.
- —upgrade to 8.11.2 or later
Is CVE-2021-43801 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 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 |