---
id: CVE-2025-28388
aliases:
  - PYSEC-2025-258
title: >-
  OpenC3 COSMOS before v6.0.2 was discovered to contain hardcoded credentials
  for the Service Account.
summary: >-
  OpenC3 COSMOS before v6.0.2 was discovered to contain hardcoded credentials
  for the Service Account.
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
vendor: openc3
product: openc3
ecosystem: pip
affected:
  - openc3 <= 6.0.0
published: '2025-06-13'
updated: '2026-07-13'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/PYSEC-2025-258'
references:
  - url: >-
      https://github.com/OpenC3/cosmos/pull/1816/commits/195974a019f375f7c5a35f48e4151babb40649ac
  - url: 'https://github.com/OpenC3/cosmos/releases/tag/v6.0.2'
  - url: 'https://openc3.com/'
  - url: 'https://github.com/OpenC3/cosmos/pull/1816'
  - url: >-
      https://visionspace.com/openc3-cosmos-a-security-assessment-of-an-open-source-mission-framework/
tags:
  - osv
  - pip
epss: 0.00607
epssPercentile: 0.47744
ingestedAt: '2026-07-13T18:58:06.777Z'
---

## Overview

OpenC3 COSMOS before v6.0.2 was discovered to contain hardcoded credentials for the Service Account.

## Affected packages

- `openc3 <= 6.0.0`

## Remediation

Refer to the advisory for the patched release.