CVE-2026-42087Public exploitNetwork attack vector

Telemetry disclosure and deletion via unparameterized TSDB queries

Published May 4, 2026 · Updated May 4, 2026

SQL injection in OpenC3 COSMOS 6.7.0 through 7.0.0-rc2 allows remote authenticated users to read or delete telemetry data. The tsdb_lookup function in cvt_model.rb interpolates start_time and end_time values from get_tlm_values into QuestDB SQL rather than binding parameters. Any Admin, Operator, Viewer, or Runner account with the tlm permission can expose database contents or delete historical data and tables.

CVSS severity9.6
Critical
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in OpenC3 COSMOS 6.7.0 through 7.0.0-rc2 allows remote authenticated users to read or delete telemetry data. The tsdb_lookup function in cvt_model.rb interpolates start_time and end_time values from get_tlm_values into QuestDB SQL rather than binding parameters. Any Admin, Operator, Viewer, or Runner account with the tlm permission can expose database contents or delete historical data and tables.

The record

CVE
CVE-2026-42087
Published
May 4, 2026
Updated
May 4, 2026
Vendor
OpenC3
Product
COSMOS
Classifications
CWE-89, T1485, T1213.006
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 4, 2026CVE publishedPublication date reported by the CVE source.
  2. May 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 6.7.0, < 7.0.0-rc3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenC3 · COSMOSversion=>= 6.7.0, < 7.0.0-rc3

Published CVSS scores

9.6GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1485Data Destruction
T1213.006Data from Information Repositories: Databases

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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