CVE-2021-43801 HIGH

CVE-2021-43801: Uncaught Exception in mercurius

Vendor Mercurius-Js
Product mercurius
Weakness CWE-754
Published December 13, 2021
Last update August 4, 2024
View on NVD All CVEs

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

December 13, 2021 CVE published
August 4, 2024 Record updated