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CVE-2024-27928— Vantage6: 2FA can be circumvented with hacked email access

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之前版本存在授权问题漏洞，该漏洞源于CWE-308授权问题，可能导致攻击者在劫持用户邮箱后重置密码和双因素认证令牌。

AI Predicted 4.3 Difficulty: Theoretical EPSS 0.28% · P18

Affected Version Matrix 1

VendorProduct Version RangeStatus
vantage6 vantage6 < 5.0.0 affected
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I. Basic Information for CVE-2024-27928

Vulnerability Information
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Vulnerability Title
Vantage6: 2FA can be circumvented with hacked email access
Source: CVE Program / CVE List V5
Vulnerability Description
vantage6 is an open-source infrastructure for privacy preserving analysis. Prior to version 5.0.0, if an attacker hacks into a vantage6 user's email account, they can 1) reset the password via email and then 2) reset the 2FA token via email. This way they reduce 2FA to 1FA (email access). Note that most email providers require 2FA to access email, so this issue is not very likely to cause issues. Version 5.0.0 fixes the issue. No known workarounds are available.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用单一因素认证机制
Source: CVE Program / CVE List V5
Vulnerability Title
Vantage6 授权问题漏洞
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之前版本存在授权问题漏洞，该漏洞源于CWE-308授权问题，可能导致攻击者在劫持用户邮箱后重置密码和双因素认证令牌。
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-2024-27928

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III. Intelligence Information for CVE-2024-27928

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Vendor Advisories for CVE-2024-27928 (2)

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

CVE-2026-54533 vantage6 node has an Improper Access Control issue
CVE-2026-54445 Vantage6: Set admin user and password from environment or configuration
CVE-2024-24769 Vantage6: No limit on emails sent for password/MFA reset

IV. Related Vulnerabilities

Same product: vantage6
Same vendor: vantage6
Same weakness: CWE-308

V. Comments for CVE-2024-27928

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