CVE-2021-43803 | BDVDB-2026-165539 Detail
vercelnext.js
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.
Impact#
Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact high. Attack vector: network.
Weaknesses#
- CWE-20 Improper Input Validation
References#
- https://github.com/vercel/next.js/security/advisories/GHSA-25mp-g6fv-mqxx
- https://github.com/vercel/next.js/pull/32080
- https://github.com/vercel/next.js/commit/6d98b4fb4315dec1badecf0e9bdc212a4272b264
- https://github.com/vercel/next.js/releases/tag/v11.1.3
- https://github.com/vercel/next.js/releases/v12.0.5
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.