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Malicious code in internallib_v647 (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.

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Affected packages

  • npm internallib_v647

    Affected
    >= 1.0.3, <= 1.0.3
    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 (701b4c0d503cece80b2a7c5e7e59d1ae5b134b3b801e3ba966f177703917d244) package.json declares the dependency `internallib-helper` as a plain-HTTP tarball URL at a bare internal IP: `http://10.0.77.5:8000/internallib-helper-1.0.0.tgz`. On `npm install`, npm fetches and installs whatever bytes that endpoint returns and runs any lifecycle scripts contained in the resolved tarball. The source is not the npm registry, there is no version pin, no integrity hash, and no TLS, so the fetched content is unauthenticated and mutable, and any party controlling or able to MITM 10.0.77.5:8000 controls code executed on the installing host. The shipped package source is a minimal stub, so the manifest line itself is the install-time execution vector.

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

    Published from osv record MAL-2026-19229

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: mal-2026-19229

Advisory: Malicious code in internallib_v647 (npm)
IDs: mal-2026-19229
Record: https://patchnext.com/advisories/mal-2026-19229 (revision 1, source checked 13 Nov 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 internallib_v647: affected >= 1.0.3, <= 1.0.3

## Suggested inspection (read-only)
- `npm ls internallib_v647 --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 internallib_v647.
- 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-2026-19229 (OSV record MAL-2026-19229 lists affected ranges: npm internallib_v647 >=1.0.3 <=1.0.3)

Commands are suggestions: review each one before running it.

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