CVE-2026-40191Disclosure

LOWCVSS 6.8 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies. Prior to 5.0.4-beta-1f46165, ClearanceKit's Endpoint Security event handler only checked the source path of dual-path file operations against File Access Authorization (FAA) rules and App Jail policies. The destination path was ignored entirely. This allowed any local process to bypass file-access protection by using rename, link, copyfile, exchangedata, or clone operations to place or replace files inside protected directories. This vulnerability is fixed in 5.0.4-beta-1f46165.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-863

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • General: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-04-10); latest day: 1
  • 2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-04-10: 1Mentions · 2026-04-11: 1Technical Details · 2026-04-10: 1Technical Details · 2026-04-11: 104-1004-11
Signal classification2 categories
Disclosure
150.0%
General
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-04-101
Disclosure1
2026-04-111
General1
Full discourse2 posts
  • Vulmon Vulnerability Feed@VulmonFeeds
    General

    CVE-2026-40191 ClearanceKit File Access Policy Bypass via Dual-Path Operations on macOS https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-40191

    Post summary

    The post simply lists CVE‑2026‑40191 and provides a brief technical description of its bypass mechanism, without indicating PoC, exploit, active use, or mitigation information.

    0000051
    4.0K followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-40191 ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies. Prior to 5.0.4-beta-1f46165, ClearanceKit's Endpoint Security ev… https://www.cve.org/CVERecord?id=CVE-2026-40191

    Post summary

    The note announces CVE‑2026‑40191, describing how ClearanceKit intercepts file‑system access and enforces per‑process policies before a certain version.

    0000044
    57.0K followersView on X

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