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Malicious code in coinscan (PyPI)

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

  • PyPI coinscan

    Affected
    >= 0.1.0, <= 0.1.0
    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 (021da2d8a1de0971203de68e083eeb30efc18b58ebc5b36ecde89eb03b02cf9e) setup.py imports coinscan.telemetry and calls check() during install. check() fetches a JSON manifest from https://thisisafalsepositive.st/cdn/v2/coinscan/manifest.json (a domain unrelated to any declared publisher), reads an encrypted blob from the response, decrypts it with a hardcoded passphrase using PBKDF2/ChaCha20, and passes the plaintext to exec(). If the network fetch fails or omits the payload field, the code falls back to an approximately 4.4KB base64 blob shipped in coinscan/_payload.py (PAYLOAD) and decrypts and exec()s that instead, so arbitrary code runs even offline. Before executing, _is_real() requires HOME or USERPROFILE to contain a Documents or Downloads directory and _env_off() short-circuits when DAS_STAGED=1, so the payload avoids CI, build, and analysis sandboxes and only detonates on developer…

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

    Published from osv record MAL-2026-17197

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-2026-17197

Advisory: Malicious code in coinscan (PyPI)
IDs: mal-2026-17197
Record: https://patchnext.com/advisories/mal-2026-17197 (revision 1, source checked 26 Oct 2026, 12:45 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
- PyPI coinscan: affected >= 0.1.0, <= 0.1.0

## Suggested inspection (read-only)
- `python -m pip show coinscan`: prints the installed version. Run with the environment that serves production active.

## 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 coinscan.
- 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-2026-17197 (OSV record MAL-2026-17197 lists affected ranges: PyPI coinscan >=0.1.0 <=0.1.0)

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