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TI-2023-09728 Aliases CVE-2023-23930GHSA-5m22-cfq9-86x6

vantage6's Pickle serialization is insecure

Priority LOW 34CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-502.

Summary

vantage6 is privacy preserving federated learning infrastructure. Versions prior to 4.0.0 use pickle, which has known security issue, as a default serialization module but that has known security issues. All users of vantage6 that post tasks with the default serialization are affected. Version 4.0.0 contains a patch. Users may specify JSON serialization as a workaround.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01108 66th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed vantage6 (vantage6): 4.0.0vantage6 (PyPI): 4.0.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
vantage6vantage6before 4.0.04.0.0Patch availableCNA
—vantage6 (PyPI)before 4.0.24.0.2Patch availableGHSA-5m22-cfq9-86x6
  • vantage6 Vendorvantage6 Affected before 4.0.0 Fixed in 4.0.0 Patch available CNA
  • vantage6 (PyPI) Vendor— Affected before 4.0.2 Fixed in 4.0.2 Patch available GHSA-5m22-cfq9-86x6

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:vantage6:vantage6:*:*:*:*:*:*:*:*before 4.0.2Vulnerablevantage6
  • cpe:2.3:a:vantage6:vantage6:*:*:*:*:*:*:*:* Versions before 4.0.2 Vulnerable ·vantage6

Remediation

  • Fix · CNA vantage6 (vantage6) Fixed in 4.0.0
  • Fix · GHSA-5m22-cfq9-86x6 vantage6 (PyPI) Fixed in 4.0.2 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-23930
  2. 2026-10-03 Alias added: GHSA-5m22-cfq9-86x6

References

Exploit 1

Patch 1

Advisory 2

Other 3

  • TI-2024-14786 vantage6 unencrypted task can be created in encrypted collaboration CVSS 3.1MEDIUM 4.3
  • TI-2024-14378 vantage6 insecure SSH configuration for node and server containers CVSS 3.1CRITICAL 9.8
  • TI-2024-14374 Remote code execution in vantage6 CVSS 3.1HIGH 8.8
  • TI-2023-09727 Refresh tokens do not expire in Vantage6 CVSS 3.1HIGH 8.8
  • TI-2023-25773 vantage6 Node accepts non-whitelisted algorithms from malicious server CVSS 3.1HIGH 8.8
  • TI-2024-16287 Username timing attack on recover password/MFA token in vantage6 CVSS 3.1MEDIUM 5.3
See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences