CVE-2025-15381

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 v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://huntr.com/bounties/149fb2f9-ef4b-4136-a25c-20563451904c	Third Party Advisory Exploit

Configurations

Configuration 1 (hide)

cpe:2.3:a:lfprojects:mlflow:-:*:*:*:*:*:*:*

History

28 Apr 2026, 14:32

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~8.1~~	v2 : unknown v3 : 7.1
References	~~() https://huntr.com/bounties/149fb2f9-ef4b-4136-a25c-20563451904c -~~	() https://huntr.com/bounties/149fb2f9-ef4b-4136-a25c-20563451904c - Third Party Advisory, Exploit
CPE		cpe:2.3:a:lfprojects:mlflow:-:::::::*
First Time		Lfprojects mlflow Lfprojects
CWE		NVD-CWE-noinfo

27 Mar 2026, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-27 17:16

Updated : 2026-04-28 14:32

NVD link : CVE-2025-15381

Mitre link : CVE-2025-15381

CVE.ORG link : CVE-2025-15381

JSON object : View

Products Affected

lfprojects

mlflow

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

NVD-CWE-noinfo

{"id": "CVE-2025-15381", "cveTags": [], "metrics": {"cvssMetricV30": [{"type": "Secondary", "source": "security@huntr.dev", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.8}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 4.2, "exploitabilityScore": 2.8}]}, "published": "2026-03-27T17:16:26.573", "references": [{"url": "https://huntr.com/bounties/149fb2f9-ef4b-4136-a25c-20563451904c", "tags": ["Third Party Advisory", "Exploit"], "source": "security@huntr.dev"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security@huntr.dev", "description": [{"lang": "en", "value": "CWE-200"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-04-28T14:32:08.523", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:lfprojects:mlflow:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F18F1880-033C-4E18-913C-6C5356427ABB"}], "operator": "OR"}]}], "sourceIdentifier": "security@huntr.dev"}