Next.js: Denial of Service in App Router using Server Actions
High-risk advisory
CVE-2026-64641
Summary
Next.js: Denial of Service in App Router using Server Actions
Why it matters
GitHub has published a reviewed security advisory for next. Prioritize it with other application dependency updates.
Operator check
Check whether next is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 8.2.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.