Vulnerability · Published Dec 13, 2021 · Assigned by GitHub_M
CVE-2021-43801Uncaught Exception in mercurius
High 7.5
In plain English
A high-severity security flaw in mercurius from mercurius-js. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 76% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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 `/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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | mercurius | 8.11.2 | GHSA-273r-rm8g-7f3x |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| mercurius-js | mercurius | >= 8.10.0, < 8.11.2 |
Weakness: CWE-754 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H