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Malicious code in @axo_cuy/baileys (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 @axo_cuy/baileys

    Affected
    >= 1.0.0, <= 1.0.0
    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 (0b32f937714cfd8023a0123f7e15dbeb6a2146fd7f3a22f9cb5ff6728b9d3f48) package.json declares a hard dependency `libsignal` with the source `github:tenka-san/libsignal-node`. This is an off-registry dependency source: `npm install` resolves it to the current HEAD of that third-party GitHub repository with no version/commit pin and no integrity check, and executes any lifecycle scripts shipped by that repository on the installer's machine. The owner of `tenka-san/libsignal-node` can change the installed code at any time without republishing this package. The target repository is not the upstream Baileys/libsignal publisher, so installation introduces a third-party code path that bypasses registry review and dependency pinning.

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

    Published from osv record MAL-2026-18440

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-2026-18440

Advisory: Malicious code in @axo_cuy/baileys (npm)
IDs: mal-2026-18440
Record: https://patchnext.com/advisories/mal-2026-18440 (revision 1, source checked 2 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 @axo_cuy/baileys: affected >= 1.0.0, <= 1.0.0

## Suggested inspection (read-only)
- `npm ls @axo_cuy/baileys --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 @axo_cuy/baileys.
- 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-2026-18440 (OSV record MAL-2026-18440 lists affected ranges: npm @axo_cuy/baileys >=1.0.0 <=1.0.0)

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