CVE-2026-43728

Security: An attacker may be able to modify the state of the Keychain

CVE-2026-43728 is fixed in Tahoe on 1 platform by Tahoe 26.6 (version 26.6), released July 27, 2026. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

7.5

HIGH

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0026

18th percentile

This issue was addressed through improved state management.

Where it's fixed

Product	Fixed in	Fix	Released
macOS
Tahoe	26.6	Tahoe 26.6	Jul 27, 2026

Details

Published
July 27, 2026
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Vendor advisory
https://support.apple.com/en-us/128067

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