CVE-2026-43783

A race condition was addressed with improved locking. This issue is fixed in macOS Tahoe 26.6. A malicious app may be able to gain root privileges.

Affected

Apple · macOS

CVSS v3.1 CNA

7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.13% chance of exploitation in the next 30 days, 2nd percentile

Published

2026-09-14

Updated

2026-09-15

Proof-of-concept exploits (1)

• andrd3v/CVE-2026-4378321★ · 2026-09-18

Security advisories

• https://support.apple.com/en-us/128067

References

• CVE Record
• NVD entry