next Known Vulnerabilities & Fixes
next has 4 known security vulnerabilities in npm (Node.js). Upgrade to version 16.3.3 or later to resolve all known issues. Data sourced from OSV, enriched with EPSS exploit probability and CISA KEV.
Low Immediate Risk
No actively exploited vulnerabilities detected. Monitor and update in your next maintenance window.
Recommended safe version: 16.3.3
Upgrading to 16.3.3 or later resolves all 4 known vulnerabilities in next. Run: npm install next@16.3.3
Is next in your project?
Check if you're affected and upgrade to 16.3.3 to stay secure.
Security Summary
- 10 affected version ranges have been identified across these 4 advisories.
- 100% of known issues have a published fixed version.
- Remediation: npm update next
Vulnerabilities
4 unique vulnerabilities — sorted by exploitation risk (KEV → EPSS → CVSS). Click a CVE/GHSA ID for full details. First disclosed Mar 21, 2025, most recently Sep 8, 2026 (536 days apart).
| CVE / GHSA | Severity | Affected | Fixed In |
|---|---|---|---|
| CVE-2026-75604 Next.js: Unauthenticated Remote Code Execution on windows-hosted servers | CRITICAL | All versions | 15.5.24, 16.3.3 |
| CVE-2025-29927 Authorization Bypass in Next.js Middleware | CRITICAL | All versions | 13.5.9, 14.2.25, 15.2.3 (+1 more) |
| CVE-2026-44578 Next.js vulnerable to server-side request forgery in applications using WebSocket upgrades | HIGH | All versions | 15.5.16, 16.2.5 |
| CVE-2026-64645 Next.js: Server-Side Request Forgery in rewrites via attacker-controlled destination hostname | HIGH | All versions | 15.5.21, 16.2.11 |
About This Data
Vulnerability data for next is sourced from the Open Source Vulnerability (OSV) database, aggregating reports from GitHub Advisory Database, NIST NVD, and ecosystem-specific sources.
CVSS (Common Vulnerability Scoring System) scores reflect exploitability and impact. EPSS (Exploit Prediction Scoring System) scores indicate the probability of exploitation within the next 30 days. Vulnerabilities marked with are listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
Related npm (Node.js) Packages
Other packages in this ecosystem, ranked by shared vulnerabilities where available.
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