CVE-2026-42087CWE-89

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

Critical · published May 4, 2026

CVSS v3.1
9.6
EPSS
0%
Percentile
37.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.6 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00445 · 37.7th percentile
Weakness
CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Published
2026-05-04T17:18Z
EPSS history
Timeline
  • 04 MAY 17:18Z
    OpenC3 COSMOS: SQL Injection in QuestDB Time-Series Data Base
    cvelistv5