CVE-2026-42087

CRITICAL

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

Title source: cna
STIX 2.1

Description

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.

Scores

CVSS v3 9.6
EPSS 0.0002
EPSS Percentile 6.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-89
Status published
Products (2)
OpenC3/cosmos >= 6.7.0, < 7.0.0-rc3
rubygems/openc3 6.7.0 - 7.0.0-rc3RubyGems
Published May 04, 2026
Tracked Since May 04, 2026