CVE-2021-43801
High
Description
Mercurius is a GraphQL adapter for Fastify. 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. 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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductMercurius
PublishedDec 13, 2021
First seenDec 13, 2021
Weakness typeCWE-754CWE-754
How to fix
Update
- mercurius_project mercurius8.11.2 or later
- mercurius8.11.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mercurius_project mercurius | 8.10.0 ≤ v < 8.11.2 | 8.11.2 |
| mercuriusnpm | 8.10.0 ≤ v < 8.11.2 | 8.11.2 |
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