CVE-2026-84590 is a vulnerability in Apple macOS
Published on October 26, 2026
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. A remote attacker may be able to cause unexpected app termination or heap corruption.
Products Associated with CVE-2026-84590
Want to know whenever a new CVE is published for Apple macOS? stack.watch will email you.
Affected Versions
Apple macOS:- Before 15.8.2 is affected.
- Before 26.7.2 is affected.
- Before 27.2 is affected.