CVE-2025-28384

OpenC3 COSMOS Vulnerable to Directory Traversal via /script-api/scripts/ endpoint

9.1 Critical

An issue in the /script-api/scripts/ endpoint of OpenC3 COSMOS before 6.1.0 allows attackers to execute a directory traversal.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: None

Exploit likelihood

0.89%Up 0.6 points since Jun 14, 2025

What each source reports

CVE List Score used 9.1

An issue in the /script-api/scripts/ endpoint of OpenC3 COSMOS before 6.1.0 allows attackers to execute a directory traversal.

Record: CVE-2025-28384
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-22
Updated: 2026-11-02

EUVDEUVD-2025-18281 9.1

An issue in the /script-api/scripts/ endpoint of OpenC3 COSMOS before 6.1.0 allows attackers to execute a directory traversal.

Record: EUVD-2025-18281
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-p67j-387g-75wc 9.1

OpenC3 COSMOS Vulnerable to Directory Traversal via /script-api/scripts/ endpoint

An issue in the /script-api/scripts/ endpoint of OpenC3 COSMOS 6.0.0 allows attackers to execute a directory traversal.

Record: GHSA-p67j-387g-75wc
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-22
Updated: 2026-11-02

NVD 9.1

An issue in the /script-api/scripts/ endpoint of OpenC3 COSMOS before 6.1.0 allows attackers to execute a directory traversal.

Record: CVE-2025-28384
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-22
Updated: 2026-11-02

OSV 9.1

An issue in the /script-api/scripts/ endpoint of OpenC3 COSMOS before 6.1.0 allows attackers to execute a directory traversal.

Record: CVE-2025-28384
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Updated: 2026-11-02

OSVGHSA-p67j-387g-75wc 9.1

OpenC3 COSMOS Vulnerable to Directory Traversal via /script-api/scripts/ endpoint

An issue in the /script-api/scripts/ endpoint of OpenC3 COSMOS 6.0.0 allows attackers to execute a directory traversal.

Record: GHSA-p67j-387g-75wc
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-22
Updated: 2026-11-02

OSVPYSEC-2025-257 9.1

An issue in the /script-api/scripts/ endpoint of OpenC3 COSMOS before 6.1.0 allows attackers to execute a directory traversal.

Record: PYSEC-2025-257
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Updated: 2026-11-02

Affected products

openc3 cosmos

Affected packages

Affected packages
Package	Affected	Fixed
`openc3-cosmos-tool-iframe` RubyGems	6.0.0 to 6.0.0	None known
`openc3-cosmos-tool-iframe` RubyGems	Listed versions 6.0.0	None known
`openc3` PyPI	through 6.0.0, plus listed versions 0.1.05.10.05.10.15.11.05.11.1 Show 19 moreShow less 5.11.25.11.35.12.05.13.05.14.05.14.15.14.25.15.05.15.15.15.25.16.05.16.15.16.25.17.05.17.15.18.05.19.05.20.05.9.2b0	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-28384 is a critical vulnerability (CVSS 9.1) in Openc3 Cosmos, published June 13, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.89%, the 59th percentile. No source names a fixed version.

References

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