CVE-2026-86868

An authentication issue was addressed with improved state management

Risk score: 62/100
CVSS: 9.1 v3.1
Exploit chance (30 days): 0.2%
Published: 20 Oct 2026

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What to know

What it is: An authentication issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An attacker may be able to impersonate other users.
Affected: See advisory
Fix: Apply the vendor's security update; see the linked advisory.
Exploitation: No known exploitation

Why it is Amber

CVSS 9.1 critical
Remotely exploitable without logging in

References

https://support.apple.com/en-us/149035
https://support.apple.com/en-us/149042
https://support.apple.com/en-us/149043

Original description

An authentication issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An attacker may be able to impersonate other users.

Last activity 20 Oct 2026. Patch Forecast updates every hour.