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Critical, CVSS 9.8

PYSEC-2022-43166

CVE-2022-34983

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (scu-captcha 0.0.5), redeploy, then verify what is actually installed.

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

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
9.8 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
  • CVE-2022-34983: 1.68% estimated exploitation activity in the next 30 days; percentile 76.99 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

The scu-captcha package in PyPI v0.0.1 to v0.0.4 included a code execution backdoor inserted by a third party.

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

    Published from osv record PYSEC-2022-43166

Agent brief

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

# Patch Next advisory brief: CVE-2022-34983

Advisory: PYSEC-2022-43166
IDs: CVE-2022-34983
Record: https://patchnext.com/advisories/cve-2022-34983 (revision 1, source checked 24 Oct 2026, 04:13 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Critical (CVSS 9.8)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: scu-captcha 0.0.5. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI scu-captcha: affected >= 0.0.1, < 0.0.5; fixed in 0.0.5

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

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on scu-captcha.
- 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/PYSEC-2022-43166 (OSV record PYSEC-2022-43166 lists affected ranges: PyPI scu-captcha >=0.0.1 <0.0.5 (fixed))

Commands are suggestions: review each one before running it.

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