High severityNVD Advisory· Published Dec 9, 2021· Updated Aug 4, 2024
Unexpected server crash in Next.js
CVE-2021-43803
Description
Next.js is a React framework. In versions of Next.js prior to 12.0.5 or 11.1.3, invalid or malformed URLs could lead to a server crash. In order to be affected by this issue, the deployment must use Next.js versions above 11.1.0 and below 12.0.5, Node.js above 15.0.0, and next start or a custom server. Deployments on Vercel are not affected, along with similar environments where invalid requests are filtered before reaching Next.js. Versions 12.0.5 and 11.1.3 contain patches for this issue.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
nextnpm | >= 12.0.0, < 12.0.5 | 12.0.5 |
nextnpm | >= 0.9.9, < 11.1.3 | 11.1.3 |
Affected products
2Patches
Vulnerability mechanics
References
7- github.com/advisories/GHSA-25mp-g6fv-mqxxghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-43803ghsaADVISORY
- github.com/vercel/next.js/commit/6d98b4fb4315dec1badecf0e9bdc212a4272b264ghsax_refsource_MISCWEB
- github.com/vercel/next.js/pull/32080ghsax_refsource_MISCWEB
- github.com/vercel/next.js/releases/tag/v11.1.3ghsax_refsource_MISCWEB
- github.com/vercel/next.js/releases/v12.0.5ghsax_refsource_MISCWEB
- github.com/vercel/next.js/security/advisories/GHSA-25mp-g6fv-mqxxghsax_refsource_CONFIRMWEB
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