CVE Vulnerability

CVE-2022-21721

Next.js is a React framework. Starting with version 12.0.0 and prior to version 12.0.9, vulnerable code could allow a bad actor to trigger a denial of service attack for anyone using i18n functionality. In order to be affected by this CVE, one must use next start or a custom server and the built-in i18n support. Deployments on Vercel, along with similar environments where invalid requests are filtered before reaching Next.js, are not affected. A patch has been released, `next@12.0.9`, that mitigates this issue. As a workaround, one may ensure `/${locale}/_next/` is blocked from reaching the Next.js instance until it becomes feasible to upgrade.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/vercel/next.js/pull/33503 Patch Third Party Advisory
https://github.com/vercel/next.js/security/advisories/GHSA-wr66-vrwm-5g5x Third Party Advisory
https://github.com/vercel/next.js/releases/tag/v12.0.9 Release Notes Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:*
Information

Published : 2022-01-28 10:15

Updated : 2022-02-04 03:08

NVD link : CVE-2022-21721

Mitre link : CVE-2022-21721

Products Affected
No products.
CWE
CWE-400