CVE-2022-21721
MEDIUM5.9EPSS 0.93%Denial of Service Vulnerability in next.js
Description
### Impact Vulnerable code could allow a bad actor to trigger a denial of service attack for anyone running a Next.js app at version >= 12.0.0, and using i18n functionality. - **Affected:** All of the following must be true to be affected by this CVE - Next.js versions above v12.0.0 - Using next start or a custom server - Using the built-in i18n support - **Not affected:** - Deployments on Vercel (vercel.com) are not affected along with similar environments where invalid requests are filtered before reaching Next.js. ### Patches A patch has been released, `[email protected]`, that mitigates this issue. We recommend all affected users upgrade as soon as possible. ### Workarounds We recommend upgrading whether you can reproduce or not although you can ensure `/${locale}/_next/` is blocked from reaching the Next.js instance until you upgrade. ### For more information If you have any questions or comments about this advisory: * Open an issue in [next](https://github.com/vercel/next.js) * Email us at [[email protected]](mailto:[email protected])
Affected packages (1)
- npm/next>= 12.0.0, < 12.0.9
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |