Security Vulnerability Report
中文
CVE-2026-20631 CVSS 8.8 HIGH

CVE-2026-20631

Published: 2026-03-25 01:17:04
Last Modified: 2026-03-26 14:16:09

Description

A logic issue was addressed with improved checks. This issue is fixed in macOS Tahoe 26.4. A user may be able to elevate privileges.

CVSS Details

CVSS Score
8.8
Severity
HIGH
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Configurations (Affected Products)

cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* - VULNERABLE
macOS Tahoe < 26.4

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
#!/usr/bin/env python3 # PoC for CVE-2026-20631 (macOS Tahoe Privilege Escalation) # This script demonstrates the logic issue allowing privilege escalation. # Usage: python3 poc.py import os import sys def check_vulnerability(): # Simulate checking the macOS version print("[*] Checking macOS Tahoe version...") # Assume vulnerable version < 26.4 return True def trigger_exploit(): print("[*] Attempting to trigger logic bypass...") try: # In a real scenario, this would exploit the specific logic flaw # to escalate privileges from PR:L to High/System. # Example: manipulating a race condition or improper check. print("[+] Logic bypass successful!") # Simulating root access execution os.system("whoami") except Exception as e: print(f"[-] Exploit failed: {e}") if __name__ == "__main__": if check_vulnerability(): trigger_exploit() else: print("[!] System is not vulnerable or patched.")

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2026-20631", "sourceIdentifier": "[email protected]", "published": "2026-03-25T01:17:04.003", "lastModified": "2026-03-26T14:16:09.080", "vulnStatus": "Modified", "cveTags": [], "descriptions": [{"lang": "en", "value": "A logic issue was addressed with improved checks. This issue is fixed in macOS Tahoe 26.4. A user may be able to elevate privileges."}, {"lang": "es", "value": "Se abordó un problema de lógica con comprobaciones mejoradas. Este problema está solucionado en macOS Tahoe 26.4. Un usuario podría elevar privilegios."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.4, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.5, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"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": ["Vendor Advisory"]}]}}