Denial of Service Vulnerability in ActiveRecord's PostgreSQL adapter

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

• CVE-2022-44566: 1.26% estimated exploitation activity in the next 30 days; percentile 69.76 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

There is a potential denial of service vulnerability present in ActiveRecord's PostgreSQL adapter. This has been assigned the CVE identifier CVE-2022-44566. Versions Affected: All. Not affected: None. Fixed Versions - 2.3.18.47 (Rails LTS, which is a paid service and not part of the rubygem) - 3.2.22.34 (Rails LTS, which is a paid service and not part of the rubygem) - 4.2.11.27 (Rails LTS, which is a paid service and not part of the rubygem) - 5.2.8.15 (Rails LTS, which is a paid service and not part of the rubygem) - 6.1.7.1 - 7.0.4.1 Impact In ActiveRecord < 7.0.4.1 and < 6.1.7.1, when a value outside the range for a 64bit signed integer is provided to the PostgreSQL connection adapter, it will treat the target column type as numeric. Comparing integer values against numeric values can result in a slow sequential scan resulting in potential Denial of Service. Releases The fixed releases are available at the normal locations. Workarounds Ensure that user supplied input which is…

Published by the source

18 Jan 2023, 18:21 UTC

Last modified by the source

15 Jan 2026, 23:23 UTC

Source last checked

26 Oct 2026, 15:51 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-579w-22j4-4749

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# Patch Next advisory brief: CVE-2022-44566

Advisory: Denial of Service Vulnerability in ActiveRecord's PostgreSQL adapter
IDs: CVE-2022-44566, GHSA-579w-22j4-4749
Record: https://patchnext.com/advisories/cve-2022-44566 (revision 1, source checked 26 Oct 2026, 15:51 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.5)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: activerecord 7.0.4.1, 6.1.7.1. A vendor fix does not mean a deployment is fixed.

## Affected components
- RubyGems activerecord: affected >= 7.0.0, < 7.0.4.1; < 6.1.7.1; fixed in 6.1.7.1, 7.0.4.1

## Suggested inspection (read-only)
- RubyGems activerecord: check the installed version with your package manager.

## 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 activerecord.
- 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://github.com/advisories/GHSA-579w-22j4-4749 (GitHub-reviewed advisory GHSA-579w-22j4-4749 lists affected ranges: RubyGems activerecord >=7.0.0 =0 <6.1.7.1)

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