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Next.js vulnerable to cross-site scripting in App Router applications using CSP nonces

Next.js vulnerable to cross-site scripting in App Router applications using CSP nonces

CVE-2026-44581Published 4 months agoUpdated 5 days agoSource: OSV

Affected packages

  • next

Exploit signal

Known exploited (CISA KEV)
No
EPSS score
—
EPSS percentile
—

EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.

Sources

Structured record: https://osv.dev/vulnerability/GHSA-ffhc-5mcf-pf4q

Recommended response stack

Snyk — Scan your dependencies in CI and fix this vulnerability.→Socket — Detect malicious and compromised packages before they ship.→Vercel — Ship a patched app with zero-config deployment.→

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Next.js vulnerable to cross-site scripting in App Router applications using CSP nonces | HackTribune