tag
CSP-Nonce
CVE-2026-44581
web
MEDIUM 4.7
Next.js CSP Nonce Cache-Poisoned XSS (CVE-2026-44581)
CVE-2026-44581 is a reflected XSS issue in Next.js App Router nonce handling. Malformed nonce values from a Content-Security-Policy request header can be reflected into rendered HTML script attributes without safe attribute-context escaping. In caching…
Patched
2026-05-17