{"items":[{"id":"NVI-00014039","kind":"vulnerability","title":"MLFlow Creates a Temporary File With Insecure Permissions ","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-f2m9-wcf4-cwwx","CVE-2026-4137"],"plain_summary":"GitHub lists this reviewed advisory for mlflow. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-36af97fa211fe43894e8d37e3e100b10"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-09-01T01:05:37.000Z","value":"7 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-36af97fa211fe43894e8d37e3e100b10"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-36af97fa211fe43894e8d37e3e100b10","url":"https://github.com/advisories/GHSA-f2m9-wcf4-cwwx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-f2m9-wcf4-cwwx","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T02:21:58.521Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-36af97fa211fe43894e8d37e3e100b10"],"technology":"mlflow","known_exclusions":[],"conditions_summary":"In mlflow/mlflow versions prior to 3.11.0, the `get_or_create_nfs_tmp_dir()` function in `mlflow/utils/file_utils.py` creates temporary directories with world-writable permissions (0o777), and the `_create_model_downloading_tmp_dir()` function in `mlflow/pyfunc/__init__.py` creates directories with group-writable permissions (0o770). These insecure permissions allow local attackers to tamper with model artifacts, such as cloudpickle-serialized Python objects, and achieve arbitrary code execution when the tampered artifacts are deserialized via `cloudpickle.load()`. This vulnerability is particularly critical in environments with shared NFS mounts, such as Databricks, where NFS is enabled by default. The issue is a continuation of the vulnerability class addressed in CVE-2025-10279, which was only partially fixed.","public_affected_ranges":[">= 1.26.0, < 3.11.0"]}],"null_published_at":"2026-11-02T10:00:37.199Z","source_updated_at":"2026-09-01T01:05:37.000Z","source_disclosed_at":"2026-05-18T21:31:53.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-02T02:21:58.521Z"}],"next_cursor":null,"snapshot_revision":"42594"}