CVE-2026-20666 — Improper Authorization in Apple Macos

CWE-285 — Improper Authorization5 documents5 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 97.08%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Apple Macos
Timeline
PublishedFeb 11
Latest updateFeb 12

Description

An authorization issue was addressed with improved state management. This issue is fixed in macOS Tahoe 26.3. An app may be able to access sensitive user data.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NExploitability: 1.8 | Impact: 3.6

Affected Packages2 packages

▶CVEListV5apple/macos< 26.3
▶NVDapple/macos< 26.3

🔴Vulnerability Details

2
GHSA
GHSA-84wm-58x3-8fvc: An authorization issue was addressed with improved state management↗2026-02-12
▶
CVEList
CVE-2026-20666: An authorization issue was addressed with improved state management↗2026-02-11
▶

📋Vendor Advisories

1
Apple
CVE-2026-20666: macOS Tahoe 26.3↗2026-02-11
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-20666 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶
CVE-2026-20666 — Improper Authorization in Apple Macos | cvebase