MediumGHSA-x56p-c8cg-q435CVE-2020-15242

Open Redirect in Next.js versions

Published 8 Oct 2020 · Updated 10 Sept 2026

Affected package

nextnpm
Affected
>=9.5.0 <9.5.4
Fixed in
9.5.4
Update to the fixed version for your release line, for example:npm install next@9.5.4

Details

Impact

  • Affected: Users of Next.js between 9.5.0 and 9.5.3
  • Not affected: Deployments on Vercel (https://vercel.com) are not affected
  • Not affected: Deployments using next export

We recommend everyone to upgrade regardless of whether you can reproduce the issue or not.

Patches

https://github.com/vercel/next.js/releases/tag/v9.5.4

References

https://github.com/vercel/next.js/releases/tag/v9.5.4

Is GHSA-x56p-c8cg-q435 in any of your client repos?

Checking one package by hand is fine. Checking it across forty client projects is not. NPMscan reads the lockfiles in every GitHub repo you pick, finds each project with an affected next, and gives you the command that fixes it.

References

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.