CVE-2026-33632: ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies

Q: How do I fix CVE-2026-33632?

clearancekit: upgrade to 4.2.4. Exact commands for each OS are on this page.

Q: Is CVE-2026-33632 being exploited?

CVE-2026-33632 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-33632 affect?

CVE-2026-33632 affects clearancekit. Severity is high (CVSS 7.8). ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies. Prior to version 4.2.4, two file operation event types — ES_EVENT_TYPE_AUTH_EXCHANGEDATA and ES_EVENT_TYPE_AUTH_CLONE — were not intercepte

Routine

HIGH 7.8UPGRADE

CVE-2026-33632 is a high-severity flaw (CVSS 7.8) affecting clearancekit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies. Prior to version 4.2.4, two file operation event types — ES_EVENT_TYPE_AUTH_EXCHANGEDATA and ES_EVENT_TYPE_AUTH_CLONE — were not intercepted by ClearanceKit's opfilter system extension, allowing local processes to bypass file access policies. Commit 6181c4a patches the vulnerability by subscribing to both event types and routing them through the e

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.1% (top 99%)
CISA exploited list	No
Weakness	CWE-862
Published	2026-03-26
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: craigjbass

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-26 20:16 UTCPublished CVE record published
2026-06-17 10:37 UTCUpdated Record last modified

craigjbass clearancekit UPGRADE

Affected: < 4.2.4

Fixed in: 4.2.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy clearancekit || rpm -q clearancekit || clearancekit --version

2. UPGRADE to 4.2.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade clearancekit

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade clearancekit

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-33632?

clearancekit: upgrade to 4.2.4. Exact commands for each OS are on this page.

Is CVE-2026-33632 being exploited?

CVE-2026-33632 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-33632 affect?

CVE-2026-33632 affects clearancekit. Severity is high (CVSS 7.8). ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies. Prior to version 4.2.4, two file operation event types — ES_EVENT_TYPE_AUTH_EXCHANGEDATA and ES_EVENT_TYPE_AUTH_CLONE — were not intercepte

How urgent is CVE-2026-33632?

Priority 28/100. High severity

Software pages

macOS vulnerabilities

Related CVEs

CVE-2026-40599 HIGH 7.1 UPGRADE ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies
CVE-2026-40604 MEDIUM 4.4 UPGRADE ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies
CVE-2026-33631 HIGH 8.7 UPGRADE ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies

References

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