# CVE-2023-6977: MLflow - Path Traversal

> Live exploitation tracking for CVE-2023-6977 by the CrowdSec Live Exploit Tracker, built from real-world attack data crowdsourced from CrowdSec's global network.

Page: https://tracker.crowdsec.net/cves/CVE-2023-6977

## Key facts

- **Exploitation phase:** Limited Exploitation. The vulnerability is known but shows very limited attacker interest or exploitation activity.
- **CVSS score:** 10.0
- **Public exploit available:** Yes
- **Affected products:** MLflow
- **Weaknesses:** CWE-29 (Path Traversal: '\..\filename')
- **Tags:** ai_mcp

## Description

This vulnerability enables malicious users to read sensitive files on the server.

## CrowdSec analysis

[CVE-2023-6977](https://euvd.enisa.europa.eu/vulnerability/CVE-2023-6977) is a path traversal vulnerability in mlflow which allows attackers to read sensitive files on the server by manipulating file paths. Exploiting this flaw could lead to unauthorized disclosure of confidential information, potentially exposing credentials, configuration files, or other critical data stored on the affected system.

CrowdSec has been tracking this vulnerability and its exploits since 20th of May 2025.

CrowdSec has not observed any significant exploitation activity targeting CVE-2023-6977 across its network. As a result, no community-driven trend analysis is available for this vulnerability at this time.

Attackers exploit the `/model-versions/get-artifact` endpoint in vulnerable MLflow instances by supplying malicious values to the `path` parameter, enabling local file inclusion and potential disclosure of sensitive files.

## Timeline

- 2023-12-20: CVE Published. CVE-2023-6977 is published to NVD.
- 2025-05-20: Rule Released. CrowdSec releases a rule to detect CVE-2023-6977 exploitation attempts against the CrowdSec Network.
- 2026-09-13: CrowdSec First Seen. CrowdSec observes in-the-wild exploitation of CVE-2023-6977 for the first time.

## References

- https://huntr.com/bounties/fe53bf71-3687-4711-90df-c26172880aaf
- https://github.com/mlflow/mlflow/commit/4bd7f27c810ba7487d53ed5ef1038fca0f8dc28c
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-6977.yaml

## Live exploitation data

The [Live Exploit Tracker page](https://tracker.crowdsec.net/cves/CVE-2023-6977) follows observed exploitation activity for CVE-2023-6977. [Request an API key](https://tracker.crowdsec.net/request-api-key) for full access to its exploitation timeline, attacking IP addresses and blocklists.