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CVE-2026-54445— Vantage6: Set admin user and password from environment or configuration

Quick assessment

Affected
vantage6 vantage6
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

vantage6是vantage6团队开源的一个用于 Secure Insight eXchange 的开源 priVAcy preserviNg federalTed leArningG 基础架构。 vantage6 5.0.0之前版本存在安全漏洞，该漏洞源于初始用户root使用弱密码root，可能导致攻击者利用管理员忘记重置密码的风险进行攻击。

AI Predicted 7.5 Difficulty: Trivial EPSS 0.48% · P41

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts

Affected Version Matrix 1

VendorProduct Version RangeStatus
vantage6 vantage6 < 5.0.0 affected
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I. Basic Information for CVE-2026-54445

Vulnerability Information
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Vulnerability Title
Vantage6: Set admin user and password from environment or configuration
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
响应差异性信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
vantage6 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
vantage6是vantage6团队开源的一个用于 Secure Insight eXchange 的开源 priVAcy preserviNg federalTed leArningG 基础架构。 vantage6 5.0.0之前版本存在安全漏洞，该漏洞源于初始用户root使用弱密码root，可能导致攻击者利用管理员忘记重置密码的风险进行攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
vantage6 vantage6 < 5.0.0 -

II. Public POCs for CVE-2026-54445

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III. Intelligence Information for CVE-2026-54445

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Vendor Advisories for CVE-2026-54445 (2)

Same Patch Batch · vantage6 · 2026-06-17 · 4 CVEs total

CVE-2026-54533 vantage6 node has an Improper Access Control issue
CVE-2024-24769 Vantage6: No limit on emails sent for password/MFA reset
CVE-2024-27928 Vantage6: 2FA can be circumvented with hacked email access

IV. Related Vulnerabilities

Same product: vantage6
Same vendor: vantage6
Same weakness: CWE-204