Security Resilience

CVE-2023-6831

Path Traversal in Lfprojects Mlflow ≤ 2.9.2

Public PoCPath Traversal
Published
15 December 2023
Modified
21 November 2024
Patch / advisory
CVSS Score v3.1 8.1
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
EPSS Score 0.033 88th percentile
Risk Priority 85 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-6831 is a high-severity Path Traversal: '\..\filename' (CWE-29) vulnerability in Lfprojects Mlflow. Its CVSS base score is 8.1 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Data Obfuscation (T1001); ranked in the top 12% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

This vulnerability is AI-related — categorised as Other AI Platforms; in the Other ATLAS/OWASP Terms risk domain.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2023-6831 is a path traversal vulnerability, identified as CWE-29 and CWE-22, that affects the mlflow/mlflow GitHub repository in versions prior to 2.9.2. The flaw carries a CVSS 3.1 score of 8.1 and permits traversal sequences such as '\..\filename' that can be supplied over the network.

An authenticated attacker with low privileges can exploit the issue without user interaction to modify or delete files on the server, producing high integrity and availability impact while leaving confidentiality unaffected. The attack surface is network-reachable and requires only limited complexity to trigger.

References point to commits that resolve the traversal flaw and to the associated huntr.dev bounty report; these indicate that upgrading to MLflow 2.9.2 or later eliminates the exposure.

The EPSS score rose from lower values after disclosure to a peak of 0.8089 on 2025-12-11 before receding to the current 0.7398, demonstrating increased exploitation interest that warrants renewed attention for MLflow deployments.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

Path Traversal: '\..\filename' in GitHub repository mlflow/mlflow prior to 2.9.2.

CWE(s)

AI Security AnalysisAI

AI Category
Other AI Platforms
Risk Domain
Other ATLAS/OWASP Terms
OWASP Top 10 for LLMs 2025
None mapped
Classification Reason
MLflow is an open-source platform for managing the end-to-end machine learning lifecycle, including tracking experiments, packaging code, and deploying models, fitting under 'Other Platforms' as it is not a framework, library, or specialized AI tool.

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001 Data Obfuscation Command And Control
Adversaries may obfuscate command and control traffic to make it more difficult to detect.
T1001.001 Junk Data Command And Control
Adversaries may add junk data to protocols used for command and control to make detection more difficult.
T1003.001 LSASS Memory Credential Access
Adversaries may attempt to access credential material stored in the process memory of the Local Security Authority Subsystem Service (LSASS).
T1003.003 NTDS Credential Access
Adversaries may attempt to access or create a copy of the Active Directory domain database in order to steal credential information, as well as obtain other information about domain members such as devices, users, and access rights.
T1003.004 LSA Secrets Credential Access
Adversaries with SYSTEM access to a host may attempt to access Local Security Authority (LSA) secrets, which can contain a variety of different credential materials, such as credentials for service accounts.
T1003.005 Cached Domain Credentials Credential Access
Adversaries may attempt to access cached domain credentials used to allow authentication to occur in the event a domain controller is unavailable.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-3573Same product: Lfprojects Mlflow
CVE-2024-2928Same product: Lfprojects Mlflow
CVE-2024-3848Same product: Lfprojects Mlflow
CVE-2023-1177Same product: Lfprojects Mlflow
CVE-2025-15036Same product: Lfprojects Mlflow
CVE-2024-1483Same product: Lfprojects Mlflow
CVE-2024-1560Same product: Lfprojects Mlflow
CVE-2024-0520Same product: Lfprojects Mlflow
CVE-2024-1558Same product: Lfprojects Mlflow
CVE-2023-6015Same product: Lfprojects Mlflow

Affected Assets

lfprojects
mlflow
≤ 2.9.2

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V5.3.2

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-22

Validates pathnames and filenames to prevent traversal outside intended directories.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-02 partial match
blocks

Patching/maintenance can remediate known path-traversal flaws in deployed software (partial prevention of exploitability) but does nothing to stop the coding defect from being introduced in the first place.

PR.PS-06 partial match
blocks

Secure SDLC practices directly require input validation and path sanitization that block this traversal vector.

PR.AA-05 none match
blocks

PR.AA-05 defines and reviews access policies but does not address code-level pathname neutralization, so neither direction prevents CWE-22.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

removes
removes
removes
removes
removes

References