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CVE-2025-43863

vantage6 lacks brute-force protection on change password functionality

Published: Jun 12, 2025Updated: Sep 17, 2025 Sources: CVE List NVD GHSACWE-307
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
0.4%
Top 68.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

vantage6 is an open source framework built to enable, manage and deploy privacy enhancing technologies like Federated Learning and Multi-Party Computation. If attacker gets access to an authenticated session, they can try to brute-force the user password by using the change password functionality: they can call that route infinitely which will return the message that password is wrong until it is correct. This vulnerability is fixed in 4.11.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-307

Affected Products

vantage6vantage6
SaaS
Cloud & SaaS / saas-application
vantage6PyPIOSS Libraries
vantage6commercialCloud & SaaS
pypipackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Credential Access
View detailed technique mapping

References

https://github.com/vantage6/vantage6/security/advisories/GHSA-j6g5-p62x-58hw
github.com
https://nvd.nist.gov/vuln/detail/CVE-2025-43863
nvd.nist.gov
https://github.com/vantage6/vantage6/commit/e0f1841b310f6f610e8137db2506cf683ce154d0
github.com
and 2 more references View all →

Timeline

Published
Jun 12, 2025
Last Updated
Sep 17, 2025

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