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CVE-2025-66219

Dontkry Willitmerge command injection

9.8 CRITICALPublic exploitEPSS 2.66%
  1. Published29 Nov 2025

Description

willitmerge is a command line tool to check if pull requests are mergeable. In versions 0.2.1 and prior, there is a command Injection vulnerability in willitmerge. The vulnerability manifests in this package due to the use of insecure child process execution API (exec) to which it concatenates user input, whether provided to the command-line flag, or is in user control in the target repository. At time of publication, no known fix is public.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Dontkry Willitmerge≤ 0.2.1

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2025-66219 being actively exploited?

CVE-2025-66219 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 2.66%.

How severe is CVE-2025-66219?

CVE-2025-66219 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 2.66% probability of exploitation.

Which products are affected by CVE-2025-66219?

Affected products include Dontkry Willitmerge.

How do I fix CVE-2025-66219?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.