CVE-2025-15031
A vulnerability in MLflow's pyfunc extraction process allows for arbitrary file writes due to improper handling of tar archive entries.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.85%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 0.85% probability · 56th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- lfprojects/mlflow
- Source
- security@huntr.dev
References
- https://huntr.com/bounties/09856f77-f968-446f-a930-657d126efe4eExploit, Mitigation, Third Party Advisory
- 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-a930-657d126efe4eExploit, Mitigation, Third Party Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-15031.json
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.