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npm

CVE-2026-44573

Next.js has a Middleware / Proxy bypass in Pages Router applications using i18n

Severity
High 7.5
Published
11 May 2026
Last changed
10 Sept 2026
Added to UpHeron
14 Oct 2026
Fixed in
15.5.16, 16.2.5
Also known as
GHSA-36qx-fr4f-26g5
Sources
OSV.dev and GitHub

Affected software

SoftwareAffected versions
Next.jsnpm · osv:npm:next
  • From 12.2.0 before 15.5.16
  • From 16.0.0 before 16.2.5

References