CVE-2026-86907CWE-862broken-access-control

CVE-2026-86907

Medium · published October 20, 2026

CVSS v3.1
4.4
EPSS
0%
Percentile
1.0
In the wild
Unconfirmed
What it is

An authorization issue was addressed with improved entitlement checks. This issue is fixed in macOS Sequoia 15.8, macOS Tahoe 26.7. An app with admin privileges may be able to modify the System Keychain.

The record
Technical detail
CVSS v3.1
4.4 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00105 · 1.0th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-10-20T05:17Z
References (2)
https://support.apple.com/en-us/149042 · [email protected]https://support.apple.com/en-us/149043 · [email protected]
EPSS history
Timeline
  • 21 OCT 03:32Z
    EPSS moved — → 0%
    epss
  • 20 OCT 00:50Z
    An authorization issue was addressed with improved entitlement checks
    cvelistv5
  • 20 OCT 00:50Z
    An authorization issue was addressed with improved entitlement checks
    cvelistv5