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Low, CVSS 2.0amended

sqlite3-ruby has Use-After-Free in SQLite Aggregate Function Callbacks

CVE-2026-54620GHSA-j7fr-3v8c-3qc3

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (sqlite3 2.9.5; sqlite3-ruby 2.9.5), 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

  • RubyGems sqlite3

    Affected
    >= 2.1.0, <= 2.9.4
    Fixed in
    2.9.5

  • RubyGems sqlite3-ruby

    Affected
    >= 2.1.0, <= 2.9.4
    Fixed in
    2.9.5

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
2.0 · CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N · score source
EPSS
  • CVE-2026-54620: 0.14% estimated exploitation activity in the next 30 days; percentile 3.49 (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.

Summary Using Database#createaggregate, #createaggregatehandler, or Database#defineaggregator to define an aggregate function, and then using an open statement calling that function after the database has been explicitly closed will result in an invalid memory read and a segmentation fault. Mitigation Upgrade to sqlite3 gem v2.9.5 or later. As a workaround, avoid using an aggregate function after closing the database. Severity The sqlite3-ruby maintainers assess this as Low severity. It is reliably triggered after GC when code is structured in a particular way. There is no known general exploit that could be used as a denial of service attack.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 3 · amended ·

    Amended from ghsa record GHSA-j7fr-3v8c-3qc3

  2. Revision 2 · amended ·

    Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

  3. Revision 1 · created ·

    Published from osv record GHSA-j7fr-3v8c-3qc3

Agent brief

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# Patch Next advisory brief: CVE-2026-54620

Advisory: sqlite3-ruby has Use-After-Free in SQLite Aggregate Function Callbacks
IDs: CVE-2026-54620, GHSA-j7fr-3v8c-3qc3
Record: https://patchnext.com/advisories/cve-2026-54620 (revision 3, source checked 26 Oct 2026, 15:52 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Low (CVSS 2.0)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: sqlite3 2.9.5; sqlite3-ruby 2.9.5. A vendor fix does not mean a deployment is fixed.

## Affected components
- RubyGems sqlite3: affected >= 2.1.0, <= 2.9.4; fixed in 2.9.5
- RubyGems sqlite3-ruby: affected >= 2.1.0, <= 2.9.4; fixed in 2.9.5

## Suggested inspection (read-only)
- RubyGems sqlite3: check the installed version with your package manager.
- RubyGems sqlite3-ruby: 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 sqlite3, sqlite3-ruby.
- 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/GHSA-j7fr-3v8c-3qc3 (OSV record GHSA-j7fr-3v8c-3qc3 lists affected ranges: RubyGems sqlite3-ruby >=2.1.0 =2.1.0 <2.9.5 (fixed))
- Verified: https://github.com/advisories/GHSA-j7fr-3v8c-3qc3 (GitHub-reviewed advisory GHSA-j7fr-3v8c-3qc3 lists affected ranges: RubyGems sqlite3-ruby >=2.1.0 =2.1.0 <=2.9.4)

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