Medium 6.9Published Nov 28, 2025

CVE-2025-66219willitmerge has a command Injection vulnerability

Updated under an hour ago (Oct 27, 2026, 6:10 PM ET)

Does this affect you?

It affects shama willitmerge and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for shama willitmerge

Exploited in the last 30 days

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: 6.9 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-77
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Dec 1, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

shama willitmerge shama:willitmerge (from the name)	through 0.2.1	CNA record
dontkry willitmerge dontkry:willitmerge	through 0.2.1	NVD

References

References

https://github.com/shama/willitmerge/security/advisories/GHSA-j9wj-m24m-7jj6	x-refsource-confirm, exploit, vendor-advisory
https://github.com/shama/willitmerge/blob/2fe91d05191fb05ac6da685828d109a3a5885028/lib/willitmerge.js#L189-L197	x-refsource-misc, product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.