# CVE-2026-33632: ClearanceKit: opfilter policy bypass via exchangedata and clone operations


- **Severity:** High 8.4 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:L/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Fix available:** No
- **Published:** 26 Mar 2026
- **Updated:** 27 Mar 2026
- **Also known as:** GHSA-wpxj-vhfp-hhvm

## What is CVE-2026-33632?

CVE-2026-33632 is a high-severity vulnerability in craigjbass clearancekit, published on 26 Mar 2026. 

### Official description

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 existing policy evaluator. Users must upgrade to v4.2.4 or later and reactivate the system extension.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-33632?

It affects 1 product.


Products: Craigjbass Clearancekit.

## How do I fix CVE-2026-33632?

No fix has been published for CVE-2026-33632 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-33632 being exploited?

There is no known exploitation of CVE-2026-33632 in the wild and no public exploit code.

## Other vulnerabilities in craigjbass clearancekit

- [CVE-2026-33631](https://insights.sbomify.com/CVE-2026-33631/): ClearanceKit: opfilter policy bypass via non-open file operations (high 8.7)
- [CVE-2026-40599](https://insights.sbomify.com/CVE-2026-40599/): ClearanceKit: Ad-hoc signed binaries can spoof Apple process identities in the global allowlist (high 8.4)
- [CVE-2026-40604](https://insights.sbomify.com/CVE-2026-40604/): Security feature bypass in clearancekit (high 8.2)
- [CVE-2026-34218](https://insights.sbomify.com/CVE-2026-34218/): ClearanceKit: Managed and user-defined policy rules not enforced between opfilter start and first policy modification (medium 6.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-33632 and fix it if it is affected.

What it is: CVE-2026-33632 is a high-severity vulnerability in craigjbass clearancekit, published on 26 Mar 2026. 
Exploitation: There is no known exploitation of CVE-2026-33632 in the wild and no public exploit code.

Affected product: craigjbass clearancekit. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-33632/ (Markdown: https://insights.sbomify.com/CVE-2026-33632/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-33632
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-33632
- OSV: https://osv.dev/vulnerability/CVE-2026-33632

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-33632/
Summaries are generated and may contain mistakes; the official description above is the record.