CVE-2022-39281: fat_free_crm is a an open source, Ruby on Rails customer relationship management platform (CRM)

Q: How do I fix CVE-2022-39281?

fatfreecrm: upgrade to 0.20.1. Exact commands for each OS are on this page.

Q: Is CVE-2022-39281 being exploited?

CVE-2022-39281 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2022-39281 affect?

CVE-2022-39281 affects fatfreecrm. Severity is medium (CVSS 6.5). 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 vul

Q: How urgent is CVE-2022-39281?

Priority 42/100. No elevated risk signals yet.

This month

MEDIUM 6.5UPGRADE

CVE-2022-39281 is a medium-severity flaw (CVSS 6.5) affecting fatfreecrm. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.8% (top 22%)
CISA exploited list	No
Weakness	CWE-20
Published	2022-10-08
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: fatfreecrm

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-10-08 01:15 UTCPublished CVE record published
2026-06-17 04:58 UTCUpdated Record last modified

fatfreecrm fatfreecrm UPGRADE

Affected: < 0.20.1

Fixed in: 0.20.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy fatfreecrm || rpm -q fatfreecrm || fatfreecrm --version

2. UPGRADE to 0.20.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade fatfreecrm

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade fatfreecrm

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-39281?

fatfreecrm: upgrade to 0.20.1. Exact commands for each OS are on this page.

Is CVE-2022-39281 being exploited?

CVE-2022-39281 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-39281 affect?

CVE-2022-39281 affects fatfreecrm. Severity is medium (CVSS 6.5). 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 vul

How urgent is CVE-2022-39281?

Priority 42/100. No elevated risk signals yet.

Software pages

Ruby on Rails vulnerabilities · Ruby vulnerabilities

References

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