What is CVE-2023-22738?

CVE-2023-22738 is a medium-severity vulnerability in Vantage6, classified under Improper Preservation of Permissions. CVSS score: 6.3/10. Published 2023-03-01.

How severe is CVE-2023-22738?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Vulnerability in Vantage6

CVE-2023-22738

vantage6 is a privacy preserving federated learning infrastructure for secure insight exchange. Assigning existing users to a different organizations is currently possible. It may lead to unintended access: if a user from organization A is accidentally assigned to organization B, they will retain their permissions and therefore might be able to access stuff they should not be allowed to access. This issue is patched in version 3.8.0.

Published 2023-03-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (28.9th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 28.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Vantage6 — versions 3.8.0, < 3.8.0

Weakness classification (CWE)

CWE-281 — Improper Preservation of Permissions

References

github.com/vantage6/vantage6/security/advisories/GHSA-vvjv-97j8-94xh (Vendor Advisory)
github.com/vantage6/vantage6/commit/798aca1de142a4eca175ef51112e2235642f4f24 (Patch)

Frequently asked questions

What is CVE-2023-22738?: CVE-2023-22738 is a medium-severity vulnerability in Vantage6, classified under Improper Preservation of Permissions. CVSS score: 6.3/10. Published 2023-03-01.
How severe is CVE-2023-22738?: Medium severity. CVSS v3 base score is 6.3 out of 10.