Malicious code in w-mousekey (npm)
What to do
Vendor response not established. Follow the primary source's mitigation guidance and check back for a fix.
This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.
Affected packages
npm w-mousekey
- Affected
- >= 1.0.42, <= 1.0.42>= 1.0.41, <= 1.0.41
- Fixed in
- no fixed version recorded
Sources
- Open Source Vulnerabilities (OSV.dev), including the GitHub Advisory Database
OSV record MAL-2026-18293 lists affected ranges: npm w-mousekey >=1.0.42 =1.0.41 <=1.0.41
VerifiedObserved Structured OSV record; not marked as GitHub-reviewed.
Severity and exploitation
- Exploitation
- No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
- CVSS
- not scored
- EPSS
- No dated EPSS signal available.
Source description
As published by the source; long descriptions are shortened.
--- _-= Per source details. Do not edit below this line.=-_
Source: amazon-inspector (90980104a84f52c4a98cc74642b9ff7a6c0556771e20b6f6eaeb96eb876cd979) Analysis of w-mousekey@1.0.42 produced no indicators of installer-side harm. No install-time or import-time execution of attacker-controlled code, no exfiltration of environment variables or credentials, no reads of installer secret paths (~/.aws, ~/.ssh, ~/.npmrc, browser or wallet stores), no silent relay of caller-supplied data to a hardcoded author endpoint, no backdoor or persistence mechanism, and no self-propagation primitives were observed in the package contents.
Source: ghsa-malware (1f6f627e50d344c420e99ad291144a17b320bedfd6376fd7c9ec26068ec895f0) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have…
Dates and revisions
- Published by the source
- Last modified by the source
- Source last checked
- Revision 2 · amended ·
Amended from osv record MAL-2026-18293
- Revision 1 · created ·
Published from osv record MAL-2026-18293
Agent brief
Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.
# Patch Next advisory brief: GHSA-gmhr-j769-j6qf Advisory: Malicious code in w-mousekey (npm) IDs: GHSA-gmhr-j769-j6qf Record: https://patchnext.com/advisories/mal-2026-18293 (revision 2, source checked 30 Oct 2026, 06:15 UTC) Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected. Severity: Unrated Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV. Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed. ## Affected components - npm w-mousekey: affected >= 1.0.42, <= 1.0.42; >= 1.0.41, <= 1.0.41 ## Suggested inspection (read-only) - `npm ls w-mousekey --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`. ## Supported action No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything. ## Required regression checks - Run the test suite and a production build. - Exercise the features that depend on w-mousekey. - Repeat the inspection and confirm that only fixed versions remain installed. ## Rollback considerations - Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward. ## Unresolved questions - Which deployments run an affected version? - Exploitation status can change. Check again before lowering the priority. - Mark the work resolved only after the fixed version is verified in production. ## Sources - Verified: https://osv.dev/vulnerability/MAL-2026-18293 (OSV record MAL-2026-18293 lists affected ranges: npm w-mousekey >=1.0.42 =1.0.41 <=1.0.41) Commands are suggestions: review each one before running it.
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