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Malicious code in overarch-windows-x64-yr (npm)

GHSA-v5v8-j5gm-pq8v

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.

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Affected packages

  • npm overarch-windows-x64-yr

    Affected
    >= 2.0.0, <= 2.0.0>= 1.4.0, <= 1.4.0>= 1.5.0, <= 1.5.0
    Fixed in
    no fixed version recorded

Sources

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 (c4f6ee7ce14b6f82693df259b2b80baab736299f888037a09941b95b73780247) The package overarch-windows-x64-yr@1.4.0 contains six files and no behaviors were identified that read installer secrets, fetch and execute remote code at install or import time, open a backdoor, relay caller data to a non-first-party destination, or propagate to other packages. No lifecycle hooks performing network or shell activity, no credential-path reads, and no hardcoded attacker-controlled endpoints were observed.

Source: ghsa-malware (98f1fa32ec925a11dad1e6efa7e1884b1cc263e28f153658b5a9d79e1e7a3236) 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 been given to an outside entity, there is no…

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from osv record MAL-2026-18248

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-v5v8-j5gm-pq8v

Advisory: Malicious code in overarch-windows-x64-yr (npm)
IDs: GHSA-v5v8-j5gm-pq8v
Record: https://patchnext.com/advisories/mal-2026-18248 (revision 1, source checked 30 Oct 2026, 06:00 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 overarch-windows-x64-yr: affected >= 2.0.0, <= 2.0.0; >= 1.4.0, <= 1.4.0; >= 1.5.0, <= 1.5.0

## Suggested inspection (read-only)
- `npm ls overarch-windows-x64-yr --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 overarch-windows-x64-yr.
- 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-2026-18248 (OSV record MAL-2026-18248 lists affected ranges: npm overarch-windows-x64-yr >=2.0.0 =1.4.0 =1.5.0 <=1.5.0)

Commands are suggestions: review each one before running it.

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