How severe is CVE-2026-34218?

CVE-2026-34218 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-34218 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-34218?

CVE-2026-34218 affects Craigjbass Clearancekit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-34218?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-34218 have an EU (EUVD) identifier?

Yes. CVE-2026-34218 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17484.

When was CVE-2026-34218 published?

CVE-2026-34218 was published on 2026-03-31 and last updated on 2026-06-17.

CVE-2026-34218

CVE-2026-34218 is a medium-severity vulnerability in Craigjbass Clearancekit with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-269.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v4: 6.3
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17484
Weakness: CWE-269
Affected product: Craigjbass Clearancekit
Published: 2026-03-31
Last modified: 2026-06-17

Description

ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies. Prior to version 4.2.14, two related startup defects created a window during which only the single compile-time baseline rule was enforced by opfilter. All managed (MDM-delivered) and user-defined file-access rules were not applied until the user interacted with policies through the GUI, triggering a policy mutation over XPC. This issue has been patched in version 4.2.14.

Frequently asked questions

What is CVE-2026-34218?: ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies. Prior to version 4.2.14, two related startup defects created a window during which only the single compile-time baseline rule was enforced by opfilter. All managed (MDM-delivered) and user-defined file-access rules were not applied until the user interacted with policies through the GUI, triggering a policy mutation over XPC. This issue has been patched in version 4.2.14.
How severe is CVE-2026-34218?: CVE-2026-34218 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-34218 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-34218?: CVE-2026-34218 affects Craigjbass Clearancekit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-34218?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-34218 have an EU (EUVD) identifier?: Yes. CVE-2026-34218 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17484.
When was CVE-2026-34218 published?: CVE-2026-34218 was published on 2026-03-31 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:craigjbass:clearancekit:*:*:*:*:*:*:*:*

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