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CVE-2025-15381

Unauthorized Access to Tracing and Assessment Endpoints in mlflow/mlflow

Published: Mar 27, 2026Updated: Apr 28, 2026 Sources: CVE List NVDCWE-200
NVD MITRE
7.1CVSSHIGH
EPSS Score
0.3%
Top 76.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

In the latest version of mlflow/mlflow, when the `basic-auth` app is enabled, tracing and assessment endpoints are not protected by permission validators. This allows any authenticated user, including those with `NO_PERMISSIONS` on the experiment, to read trace information and create assessments for traces they should not have access to. This vulnerability impacts confidentiality by exposing trace metadata and integrity by allowing unauthorized creation of assessments. Deployments using `mlflow server --app-name=basic-auth` are affected.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:LI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-200NVD-CWE-noinfo

Affected Products

mlflow/mlflowmlflow
LibraryLibrary
AI / ML / ml-framework
mlflowlfprojects
On-premLibrary
AI / ML / notebook-mlops
mlflowoss-projectAI / MLaka mlflow
lfprojectsoss-projectAI / MLaka mlflow, valkey, model context protocol servers, mcp servers

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://huntr.com/bounties/149fb2f9-ef4b-4136-a25c-20563451904c
huntr.com

Timeline

Published
Mar 27, 2026
Last Updated
Apr 28, 2026

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