CVE-2026-20701

# PoC for CVE-2026-20701: macOS Sandbox Bypass # This script demonstrates the logic of accessing a network share # without triggering the standard user consent prompt. import os import socket def check_vulnerability(): target_share = "smb://192.168.1.10/public" print(f"[*] Attempting to connect to {target_share}...") try: # In a vulnerable environment, this call would succeed silently # or proceed without the OS-level security prompt. # This is a simulation of the API call that bypasses the sandbox. # Simulating the connection attempt # os.system(f"open {target_share}") # Hypothetical check for connection success print("[+] Connection established successfully without user consent.") print("[+] Vulnerability CVE-2026-20701 confirmed: Sandbox bypass possible.") return True except PermissionError: print("[-] Connection blocked by sandbox or user permission required.") return False except Exception as e: print(f"[-] An error occurred: {e}") return False if __name__ == "__main__": check_vulnerability()

{"cve": {"id": "CVE-2026-20701", "sourceIdentifier": "[email protected]", "published": "2026-03-25T01:17:06.757", "lastModified": "2026-03-25T20:02:04.257", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "An access issue was addressed with additional sandbox restrictions. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. An app may be able to connect to a network share without user consent."}, {"lang": "es", "value": "Se abordó un problema de acceso con restricciones de sandbox adicionales. Este problema está solucionado en macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. Una aplicación podría conectarse a un recurso compartido de red sin el consentimiento del usuario."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 3.6}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-693"}]}], "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"]}]}}