openc3 Known Vulnerabilities & Fixes
openc3 has 11 known security vulnerabilities in RubyGems (Ruby). Upgrade to version 7.3.0 or later to resolve all known issues. Data sourced from OSV, enriched with EPSS exploit probability and CISA KEV.
Low Immediate Risk
No actively exploited vulnerabilities detected. Monitor and update in your next maintenance window.
Recommended safe version: 7.3.0
Upgrading to 7.3.0 or later resolves all 11 known vulnerabilities in openc3. Run: gem install openc3 -v 7.3.0
Is openc3 in your project?
Check if you're affected and upgrade to 7.3.0 to stay secure.
Security Summary
- 13 affected version ranges have been identified across these 11 advisories.
- 100% of known issues have a published fixed version.
- Remediation: gem update openc3
Vulnerabilities
11 unique vulnerabilities — sorted by exploitation risk (KEV → EPSS → CVSS). Click a CVE/GHSA ID for full details. First disclosed Oct 2, 2024, most recently Sep 23, 2026 (721 days apart).
| CVE / GHSA | Severity | Affected | Fixed In |
|---|---|---|---|
| CVE-2026-77602 OpenC3 COSMOS: Authenticated remote code execution via the user-writable config overlay (table definitions, cmd/tlm definitions, and script suites) | CRITICAL | 5.1.0, 5.1.1, 5.10.0, 5.10.1 (+74 more) | 7.3.0 |
| CVE-2025-68271 openc3-api Vulnerable to Unauthenticated Remote Code Execution | CRITICAL | 5.0.10, 5.0.11, 5.0.6, 5.0.7 (+66 more) | 6.10.2 |
| CVE-2026-42088 OpenC3 COSMOS: Permissions Bypass Provides User Access to Unassigned Administrative Actions via Script Runner Tool | CRITICAL | 5.0.10, 5.0.11, 5.0.6, 5.0.7 (+71 more) | 7.0.0-rc3 |
| CVE-2026-42087 OpenC3 COSMOS has SQL Injection in QuestDB Time-Series Database | CRITICAL | 6.10.0, 6.10.1, 6.10.2, 6.10.3 (+9 more) | 7.0.0-rc3 |
| CVE-2026-77601 OpenC3 COSMOS: Authenticated OS command injection via the `pypi_url` setting | HIGH | 5.12.0, 5.13.0, 5.14.0, 5.14.1 (+47 more) | 7.3.0 |
| CVE-2026-42084 OpenC3 COSMOS: Hijacked session token can be used to reset password for persistence | HIGH | 5.0.10, 5.0.11, 5.0.6, 5.0.7 (+79 more) | 6.10.5, 7.0.0-rc3 |
| CVE-2024-46977 OpenC3 Path Traversal via screen controller (`GHSL-2024-127`) | HIGH | 5.0.10, 5.0.11, 5.0.6, 5.0.7 (+43 more) | 5.19.0 |
| CVE-2026-42085 OpenC3 COSMOS allows arbitrary writes to plugins directory via path-traversed config filenames | MEDIUM | 5.0.10, 5.0.11, 5.0.6, 5.0.7 (+79 more) | 6.10.5, 7.0.0-rc3 |
| CVE-2024-47529 OpenC3 stores passwords in clear text (`GHSL-2024-129`) | MEDIUM | 5.0.10, 5.0.11, 5.0.6, 5.0.7 (+43 more) | 5.19.0 |
| CVE-2026-42086 OpenC3 COSMOS is Vulnerable to Self-XSS Through the Command Sender | MEDIUM | 5.0.10, 5.0.11, 5.0.6, 5.0.7 (+74 more) | 7.0.0 |
| CVE-2024-43795 OpenC3 Cross-site Scripting in Login functionality (`GHSL-2024-128`) | MEDIUM | 5.0.10, 5.0.11, 5.0.6, 5.0.7 (+43 more) | 5.19.0 |
About This Data
Vulnerability data for openc3 is sourced from the Open Source Vulnerability (OSV) database, aggregating reports from GitHub Advisory Database, NIST NVD, and ecosystem-specific sources.
CVSS (Common Vulnerability Scoring System) scores reflect exploitability and impact. EPSS (Exploit Prediction Scoring System) scores indicate the probability of exploitation within the next 30 days. Vulnerabilities marked with are listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
Related RubyGems (Ruby) Packages
Other packages in this ecosystem, ranked by shared vulnerabilities where available.
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