Critical 9.6Published May 4, 2026

CVE-2026-42087OpenC3 COSMOS: SQL Injection in QuestDB Time-Series Data Base

Updated under an hour ago (Oct 27, 2026, 5:10 PM ET)

Does this affect you?

It affects OpenC3 cosmos. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for OpenC3 cosmos

Exploited in the last 30 days

OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. From version 6.7.0 to before version 7.0.0-rc3, a SQL injection vulnerability exists in the Time-Series Database (TSDB) component of COSMOS. The tsdb_lookup function in the cvt_model.rb file directly places user-supplied input into a SQL query without sanitizing the input. As a result, a user can break out of the initial SQL statement and execute arbitrary SQL commands, including deleting data. This issue has been patched in version 7.0.0-rc3.

CVSS: 9.6 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Weakness (CWE): CWE-89
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: May 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

OpenC3 cosmos openc3:cosmos (from the name)	from 6.7.0, < 7.0.0-rc3	CNA record
openc3 cosmos openc3:cosmos	from 6.7.0 before 7.0.0; 7.0.0; 7.0.0	NVD

References

References

https://github.com/OpenC3/cosmos/security/advisories/GHSA-v529-vhwc-wfc5	x-refsource-confirm, exploit, vendor-advisory
https://github.com/OpenC3/cosmos/commit/9ba60c09c8836a37a2e4ea67ab35fe403e041415	x-refsource-misc, patch
https://github.com/OpenC3/cosmos/releases/tag/v7.0.0-rc3	x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.