CVE-2024-27928 Vantage6: 2FA can be circumvented with hacked email access
Attackers with email access can bypass two-factor authentication by resetting both password and 2FA tokens via email, compromising user accounts.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-27928?
CVE-2024-27928 is a medium-severity vulnerability in vantage6, published on 17 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-308
Which versions are affected by CVE-2024-27928?
3 open source packages ship an affected version, including vantage6.
| Package | Affected | Fixed in |
|---|---|---|
vantage6 PyPI | All versions | 5.0.0 |
vantage6 PyPI | All versions | 5.0.0 |
vantage6 PyPI | All versions | 5.0.0 |
How do I fix CVE-2024-27928?
Upgrade vantage6 to 5.0.0 or later.
Is CVE-2024-27928 being exploited?
There is no known exploitation of CVE-2024-27928 in the wild and no public exploit code.
Sources
Also known as GHSA-4c5c-2vc3-x5w2, PYSEC-2026-3398.