CVE•Published 2026-05-04•Modified 2026-05-08•1 article on news•6 live references•NVD data

CVE-2026-42087Openc3 · Cosmos

Vulnerability data via NVD (ingested)

CVSS v3.1

9.6

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

EPSS percentile

Exploit Prediction Scoring System · top 93% of all CVEs

Weaknesses (CWE)

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

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.

Timeline

Published 2026-05-04

Modified 2026-05-08

External references

NVD MITRE Exploit-DB GitHub PoC Sploitus VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-42087

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Openc3 Cosmos"

All exposed Openc3 Cosmos instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Cosmos"

HTTP body or banner mentions "Cosmos" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-42087