CVE-2024-21671 json
vantage6 username timing attack
published 2024-01-30 2 y ago modified 2026-07-07 4 mo ago also GHSA-45gq-q4xh-cp53 , PYSEC-2024-31 , PYSEC-2026-2008 , EUVD-2024-0170
- cvss
- 3.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 34%
- public exploits
- 0
- none known
Summary
The vantage6 technology enables to manage and deploy privacy enhancing technologies like Federated Learning (FL) and Multi-Party Computation (MPC). It is possible to find out usernames from the response time of login requests. This could aid attackers in credential attacks. Version 4.2.0 patches this vulnerability.
Patch / fix
- pypi vantage6-server 4.2.0
- pypi vantage6 4.2.0
- vantage6 vantage6 4.2.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVD | 3.1 | 3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
| GitHub | 3.1 | 3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
| OSV | 3.1 | 3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | vantage6-server | <4.2.0 |
4.2.0 |
| pypi | vantage6 | <4.2.0 |
4.2.0 |
Affected products
- vantage6 vantage6
Classification
References
-
github.com
/vantage6/vantage6/commit/389f416c445da4f2438c72f34c3b1084485c4e30
web, patch
-
github.com
/vantage6/vantage6/security/advisories/GHSA-45gq-q4xh-cp53
web, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2024-21671
advisory
-
github.com
/pypa/advisory-database/tree/main/vulns/vantage6/PYSEC-2024-31.yaml
web
-
github.com
/vantage6/vantage6
package
-
pypi.org
/project/vantage6-server
package
-
github.com
/advisories/GHSA-45gq-q4xh-cp53
advisory
Sources
- CVE List CVE-2024-21671
- GitHub Advisory GHSA-45gq-q4xh-cp53
- NVD CVE-2024-21671
- OSV PYSEC-2026-2008
- OSV PYSEC-2024-31
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.