CVSS 3.1
9.1 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NCVE-2025-15031
Critical (9.1) in lfprojects mlflow. EPSS 0.9% chance of exploitation in the next 30 days. Fixed in mlflow 3.9.0rc0.
A vulnerability in MLflow's pyfunc extraction process allows for arbitrary file writes due to improper handling of tar archive entries. Specifically, the use of `tarfile.extractall` without path validation enables crafted tar.gz files containing `..` or absolute paths to escape the intended extraction directory. This issue affects the latest version of MLflow and poses a high/critical risk in scenarios involving multi-tenant environments or ingestion of untrusted artifacts, as it can lead to arbitrary file overwrites and potential remote code execution.
Severity
- EPSS
- 0.9% chance of exploitation in the next 30 days; higher than 59% of CVEs (scores of 2026-10-31)
- CWE
- CWE-22
- Published
- Modified
- Record from
- the NVD, synced
Affected
- lfprojects:mlflow
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-fhff-qmm8-h2fp | PyPI | mlflow | <3.9.0rc0 | 3.9.0rc0 |
| PYSEC-2026-2656 | PyPI | mlflow | <3.9.0rc0 | 3.9.0rc0 |
References
- https://huntr.com/bounties/09856f77-f968-446f-a930-657d126efe4e
- https://access.redhat.com/security/cve/CVE-2025-15031
- https://bugzilla.redhat.com/show_bug.cgi?id=2448912
- https://huntr.com/bounties/09856f77-f968-446f-a930-657d126efe4e
- https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-15031.json