CVE-2024-27928 json
Vantage6: 2FA can be circumvented with hacked email access
published 2026-06-05 5 mo ago modified 2026-11-03 5 d ago also EUVD-2024-55641 , GHSA-4c5c-2vc3-x5w2 , PYSEC-2026-3398
- cvss
- 5.9
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 20%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- pypi vantage6 5.0.0
- vantage6 vantage6 5.0.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.9 | 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 |
| CNA | 4.0 | 5.9 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | vantage6 | <5.0.0 |
5.0.0 |
Affected products
- vantage6 vantage6
Classification
- Weakness
-
- CWE-308 Use of Single-factor Authentication
References
-
github.com
/vantage6/vantage6/security/advisories/GHSA-4c5c-2vc3-x5w2
web
-
github.com
/vantage6/vantage6/issues/1932
web
-
github.com
/vantage6/vantage6/blob/main/docs/release_notes.rst#500
web
-
nvd.nist.gov
/vuln/detail/CVE-2024-27928
advisory
-
github.com
/pypa/advisory-database/tree/main/vulns/vantage6/PYSEC-2026-3398.yaml
web
-
github.com
/vantage6/vantage6
package
-
pypi.org
/project/vantage6
package
-
github.com
/advisories/GHSA-4c5c-2vc3-x5w2
advisory
Sources
- CVE List CVE-2024-27928
- GitHub Advisory GHSA-4c5c-2vc3-x5w2
- NVD CVE-2024-27928
- OSV PYSEC-2026-3398
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.