CVE-2023-1176Public exploitNetwork attack vector

Remote file-existence disclosure via registered-model path traversal

Published Mar 24, 2023 · Updated Feb 19, 2025

Path traversal in MLflow before 2.2.2 allows remote attackers to determine whether arbitrary server-accessible files exist. The file-backed Model Registry treats an absolute registered-model name as a filesystem path, and response differences disclose whether that path exists. Exposure requires the Model Registry served by mlflow server or mlflow ui to accept unauthenticated queries; managed integrations not using those commands are unaffected.

CVSS severity5.3
Medium
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Path traversal in MLflow before 2.2.2 allows remote attackers to determine whether arbitrary server-accessible files exist. The file-backed Model Registry treats an absolute registered-model name as a filesystem path, and response differences disclose whether that path exists. Exposure requires the Model Registry served by mlflow server or mlflow ui to accept unauthenticated queries; managed integrations not using those commands are unaffected.

The record

CVE
CVE-2023-1176
Published
Mar 24, 2023
Updated
Feb 19, 2025
Vendor
MLflow Project
Product
MLflow
Classifications
CWE-36, T1083
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 19, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <2.2.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MLflow Project · MLflowversion=unspecified <2.2.2

Published CVSS scores

3.3NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
5.3huntr.devCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-36Absolute Path Traversal
T1083File and Directory Discovery

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo