CVE-2026-86889

EUVD-2026-77911
A certificate validation issue was addressed with improved certificate validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An attacker in a privileged network position may be able to intercept network traffic.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.8 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 9.4%
Affected Products (NVD)
VendorProductVersion
applemacos
15.0 ≤
𝑥
< 15.8
applemacos
26.0 ≤
𝑥
< 26.7
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://support.apple.com/en-us/149035
https://support.apple.com/en-us/149042
https://support.apple.com/en-us/149043