CVE-2026-42087
CRITICALOpenC3 COSMOS: SQL Injection in QuestDB Time-Series Data Base
Title source: cnaDescription
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.
References (3)
Core 3
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/OpenC3/cosmos/security/advisories/GHSA-v529-vhwc-wfc5
X_Refsource_Misc x_refsource_misc
https://github.com/OpenC3/cosmos/commit/9ba60c09c8836a37a2e4ea67ab35fe403e041415
X_Refsource_Misc x_refsource_misc
https://github.com/OpenC3/cosmos/releases/tag/v7.0.0-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