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Next.js Patches Critical AVIF and Windows Flaws Enabling Unauthenticated RCE

medthehackernewsPublished 2026-08-27

Credit: Hacktron Vercel has released security patches for two critical-severity vulnerabilities in the Next.js web framework, both of which allow unauthenticated remote code execution, one exploitable via specially crafted AVIF image files and the other through a path traversal flaw affecting servers that use a Windows filesystem.

The Windows path traversal, tracked as CVE-2026-75604&

MITRE ATT&CK techniques

Indicators of compromise

Original source: https://thehackernews.com/2026/08/nextjs-patches-critical-avif-and.html