# OpenC3 COSMOS has SQL Injection in QuestDB Time-Series Database

Advisory record · `GHSA-v529-vhwc-wfc5`

- **Identifiers:** `GHSA-v529-vhwc-wfc5` · `CVE-2026-42087` · `PYSEC-2026-2244`
- **State:** Confirmed
- **Severity:** CVSS 9.6 Critical
- **Critical:** Yes: CVSS 9+
- **Weakness (CWE):** [CWE-89](https://cwe.mitre.org/data/definitions/89.html)
- **Tags:** [SQL injection](https://agentprime.io/advisories/tag/sql-injection.md)
- **Published:** 23 Apr 2026
- **Updated:** 13 Jul 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 23 Apr 2026, 14:12 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Critical

Critical, because:

- CVSS score 9.6: 9.0 or more.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected packages

- `openc3` (RubyGems): affected `>=6.7.0, <7.0.0-rc3`; fixed in `7.0.0-rc3`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 9.6 Critical, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0032, the 25th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:04 UTC: First seen by agentprime
- 31 Oct 2026, 15:04 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/PYSEC-2026-2244)

## Sources

- [GitHub Advisory Database: GHSA-v529-vhwc-wfc5](https://github.com/advisories/GHSA-v529-vhwc-wfc5)
- [OSV: GHSA-v529-vhwc-wfc5](https://osv.dev/vulnerability/GHSA-v529-vhwc-wfc5)
- <https://github.com/OpenC3/cosmos/security/advisories/GHSA-v529-vhwc-wfc5>
- <https://nvd.nist.gov/vuln/detail/CVE-2026-42087>
- <https://github.com/OpenC3/cosmos/commit/9ba60c09c8836a37a2e4ea67ab35fe403e041415>
- <https://github.com/OpenC3/cosmos>
- <https://github.com/OpenC3/cosmos/releases/tag/v7.0.0-rc3>
- <https://github.com/rubysec/ruby-advisory-db/blob/master/gems/openc3/CVE-2026-42087.yml>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-v529-vhwc-wfc5>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-v529-vhwc-wfc5/>. Everything for agents: <https://agentprime.io/llms.txt>.