Vulnerability · Published Jun 17, 2026 · Assigned by GitHub_M

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

Medium 5.9

In plain English

A medium-severity security flaw in vantage6 from vantage6. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)5.9Medium

Exploit odds (30 days)0.3%top 79.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
PyPI	vantage6	5.0.0	GHSA-4c5c-2vc3-x5w2
PyPI	vantage6	5.0.0	PYSEC-2026-3398

Affected products (as reported)

Vendor	Product	Versions
vantage6	vantage6	< 5.0.0

Weakness: CWE-308 · Vector: 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

References

https://github.com/vantage6/vantage6/security/advisories/GHSA-4c5c-2vc3-x5w2 x_refsource_CONFIRM
https://github.com/vantage6/vantage6/issues/1932 x_refsource_MISC
https://github.com/vantage6/vantage6/blob/main/docs/release_notes.rst#500 x_refsource_MISC