# CVE-2026-54445

## Summary

- **CVE ID:** CVE-2026-54445
- **Severity:** MEDIUM
- **CVSS Score:** 6.9 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N)
- **CWE:** CWE-204, CWE-1393
- **Published:** Jun 17, 2026
- **Last Modified:** Jun 20, 2026

## Description

vantage6 is an open-source infrastructure for privacy preserving analysis. Versions prior to 5.0.0 provide an initial user with username `root` and password `root`. This is not ideal because attackers know that almost all vantage6 servers have a user with username `root` that probably has admin rights, and the initial password is very weak and it is possible that administrators forget to reset it. Version 5.0.0 fixes the issue. As a workaround, it is possible to delete the `root` user after it has been used to create other users.

## Affected Products

- vantage6 — vantage6 (< 5.0.0)

## References

- [CNA](https://github.com/vantage6/vantage6/security/advisories/GHSA-fgmc-2hqj-86v4)
- [CNA](https://github.com/vantage6/vantage6/issues/1932)
- [CNA](https://github.com/vantage6/vantage6/blob/main/docs/release_notes.rst#500)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.29%
- **EPSS Percentile:** 21.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._