CVE-2025-15036: lfprojects mlflow Path Traversal: '\..\filename'

Vulnerability summary

CVE-2025-15036 is a critical (CVSS 10.0) Path Traversal: '\..\filename' vulnerability in lfprojects mlflow. EPSS estimates a 0.58% chance of exploitation in the next 30 days, higher than 46.6% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 30-03-2026
   PublishedVulnerability first disclosed.
2. 15-07-2026
   Last modifiedVulnerability information updated.

Description

A path traversal vulnerability exists in the `extract_archive_to_dir` function within the `mlflow/pyfunc/dbconnect_artifact_cache.py` file of the mlflow/mlflow repository. This vulnerability, present in versions before v3.7.0, arises due to the lack of validation of tar member paths during extraction. An attacker with control over the tar.gz file can exploit this issue to overwrite arbitrary files or gain elevated privileges, potentially escaping the sandbox directory in multi-tenant or shared cluster environments.

• CWE-29Path Traversal: '\..\filename'The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize '\..\filename' (leading backslash dot dot) sequences that can resolve to a location that is outside of that directory.
• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.