An authorization issue was addressed with improved state management. This issue is fixed in macOS Tahoe 26.4. An app may be able to access sensitive user data.
The following code is for security research and authorized testing only.
python
# PoC for CVE-2026-20696 Authorization Bypass
# This script demonstrates the logic flaw where state management allows unauthorized access.
# Note: Actual exploit requires macOS Tahoe < 26.4 environment.
import os
def check_vulnerability():
# Simulate checking if the app can access sensitive data without proper prompt
sensitive_path = "/Users/Shared/SensitiveData"
# In a vulnerable state, the system might incorrectly return True for permission check
# or fail to enforce the sandbox restriction.
try:
# Hypothetical check: attempting to read a restricted file
if os.path.exists(sensitive_path):
print(f"[+] Vulnerability Detected: Access allowed to {sensitive_path}")
print("[!] Potentially reading sensitive user data...")
return True
except Exception as e:
print(f"[-] Access Denied or Error: {e}")
return False
return False
if __name__ == "__main__":
print("Testing for CVE-2026-20696...")
check_vulnerability()