Apple macOS Improper Authentication Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 18/08/2026. Patch affected systems as an emergency.
| Package | Affected versions | Patched versions |
|---|---|---|
| macOS | Versions not published yet (product named by CISA KEV) | |
An authentication issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.7.9, macOS Sonoma 14.8.9, macOS Tahoe 26.6.1, macOS Tahoe 26.7. An attacker on the network may be able to authenticate to Screen Sharing without valid credentials.
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