CVE-2022-21721
Description
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, [email protected], 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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
nextnpm | >= 12.0.0, < 12.0.9 | 12.0.9 |
Affected products
3- Next.js/Next.jsdescription
Patches
Vulnerability mechanics
References
5- github.com/vercel/next.js/pull/33503nvdPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-wr66-vrwm-5g5xghsaADVISORY
- github.com/vercel/next.js/releases/tag/v12.0.9nvdRelease NotesThird Party AdvisoryWEB
- github.com/vercel/next.js/security/advisories/GHSA-wr66-vrwm-5g5xnvdThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2022-21721ghsaADVISORY
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