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Critical, CVSS 9.1amended

Malicious Package in bp66

GHSA-8gc6-65mm-xr6r

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 bp66

    Affected
    every version
    Fixed in
    no fixed version recorded

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
9.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS
No dated EPSS signal available.
Source description

As published by the source; long descriptions are shortened.

All versions of this package contained malware. The package was designed to find and exfiltrate cryptocurrency wallets. Recommendation 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 guarantee that removing the package will remove all malicious software resulting from installing it.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 2 · amended ·

    Amended from ghsa record GHSA-8gc6-65mm-xr6r

  2. Revision 1 · created ·

    Published from osv record GHSA-8gc6-65mm-xr6r

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-8gc6-65mm-xr6r

Advisory: Malicious Package in bp66
IDs: GHSA-8gc6-65mm-xr6r
Record: https://patchnext.com/advisories/ghsa-8gc6-65mm-xr6r (revision 2, source checked 26 Oct 2026, 12:08 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Critical (CVSS 9.1)
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 bp66: affected every version

## Suggested inspection (read-only)
- `npm ls bp66 --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 bp66.
- 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/GHSA-8gc6-65mm-xr6r (OSV record GHSA-8gc6-65mm-xr6r lists affected ranges: npm bp66 >=0.0.0)
- Verified: https://github.com/advisories/GHSA-8gc6-65mm-xr6r (GitHub-reviewed advisory GHSA-8gc6-65mm-xr6r lists affected ranges: npm bp66 >=0.0.0)

Commands are suggestions: review each one before running it.

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