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npm

CVE-2026-44574

Next.js has a Middleware / Proxy bypass through dynamic route parameter injection

Severity
High 8.1
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-492v-c6pp-mqqv
Sources
OSV.dev and GitHub

Affected software

SoftwareAffected versions
Next.jsnpm · osv:npm:next
  • From 15.4.0 before 15.5.16
  • From 16.0.0 before 16.2.5

References