CVE-2025-66478

Description

This CVE is a duplicate of CVE-2025-55182.

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Wolfi

Release	Package	Fixed in	Advisory
Wolfi rolling	jitsucom-jitsu +2	2.11.0-r9	—
Wolfi rolling	langfuse-3	3.137.0-r0	—

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Metasploit 1 module

Unauthenticated RCE in React Server Components (React2Shell)
exploit/multi/http/react2shell_unauth_rce_cve_2025_55182

GitHub 25 repositories · most starred shown

Malayke/Next.js-RSC-RCE-Scanner-CVE-2025-66478 ★ 430 · Dec 4, 2025

A command-line scanner for batch detection of Next.js application versions and determining if they are affected by CVE-2025-66478 vulnerability.
vercel-labs/fix-react2shell-next ★ 403 · Dec 6, 2025

One command to fix CVE-2025-66478 (React 2 Shell RCE) in your Next.js / React RSC app.
hackersatyamrastogi/react2shell-ultimate ★ 158 · Dec 5, 2025

React2Shell Ultimate - The most comprehensive CVE-2025-66478 Scanner for Next.js RSC RCE vulnerability. Multi-mode detection, WAF bypass, local scanning.
abtonc/next-cve-2025-66478 ★ 11 · Dec 3, 2025
khadafigans/React2Shell ★ 6 · Dec 30, 2025

React2Shell - CVE-2025-66478 RCE Exploit
abdozkaya/rsc-security-auditor ★ 5 · Dec 12, 2025

🛡️ Audit your Next.js & React Server Components stack for critical vulnerabilities (CVE-2025-66478, CVE-2025-55184). Detects risks & generates fix commands. 100% Client-side.
wangxso/CVE-2025-66478-POC ★ 5 · Dec 4, 2025

CVE-2025-66478 Proof of Concept
strainxx/react2shell-honeypot ★ 4 · Dec 8, 2025

My attempt to make honeypot for React2Shell vulnerability (CVE-2025-66478)
namest504/CVE-2025-66478-Exploit-Poc ★ 4 · Dec 6, 2025

React RSC (Server Components) RCE exploit chain reproduction — CVE-2025-66478
ExpTechTW/CVE-2025-66478 ★ 2 · Dec 8, 2025

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Advisories 2

NCSC-2025-0380 Kwetsbaarheden verholpen in React Server Components NCSC-NL (Netherlands) · Dec 5, 2025
WID-SEC-2025-2738 Vercel Next.js und React Server Components (React2Shell): Schwachstelle ermöglicht Codeausführung BSI CERT-Bund (WID) · Dec 4, 2025