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CVE-2021-43803: Improper Input Validation

December 10, 2021 (updated January 30, 2024)

Next handling invalid or malformed URLs could lead to a server crash. Deployments on Vercel are not affected, along with similar environments where invalid requests are filtered before reaching Next.js.

References

  • github.com/vercel/next.js/commit/6d98b4fb4315dec1badecf0e9bdc212a4272b264
  • github.com/vercel/next.js/pull/32080
  • github.com/vercel/next.js/releases/tag/v11.1.3
  • github.com/vercel/next.js/releases/v12.0.5
  • github.com/vercel/next.js/security/advisories/GHSA-25mp-g6fv-mqxx
  • nvd.nist.gov/vuln/detail/CVE-2021-43803

Code Behaviors & Features

Detect and mitigate CVE-2021-43803 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →

Affected versions

All versions starting from 11.1.0 before 11.1.3, all versions starting from 12.0.0 before 12.0.5

Fixed versions

  • 11.1.3
  • 12.0.5

Solution

Upgrade to versions 11.1.3, 12.0.5 or above.

Impact 7.5 HIGH

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

Learn more about CVSS

Source file

npm/next/CVE-2021-43803.yml

Spotted a mistake? Edit the file on GitLab.

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