CVE-2026-40599CWE-863

ClearanceKit: Ad-hoc signed binaries can spoof Apple process identities in the global allowlist

High · published April 21, 2026

CVSS v4.0
8.4
EPSS
0%
Percentile
3.6
In the wild
Unconfirmed
What it is

ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies. Prior to 5.0.5, ClearanceKit incorrectly treats a process with an empty Team ID and a non-empty Signing ID as an Apple platform binary. This bug allows a malicious software to impersonate an apple process in the global allowlist, and access all protected files. This vulnerability is fixed in 5.0.5.

The record
Technical detail
CVSS v4.0
8.4 · HIGH
Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00147 · 3.6th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-04-21T17:37Z
EPSS history
Timeline
  • 21 APR 17:37Z
    ClearanceKit: Ad-hoc signed binaries can spoof Apple process identities in the global allowlist
    cvelistv5