CVE-2026-127202
- Source
- https://cve.org/CVERecord?id=CVE-2026-127202
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-127202.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-127202
- Published
- 2026-11-12T16:37:02Z
- Modified
- 2026-11-14T02:47:32Z
- Severity
-
- 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- MLflow < 3.18.0 Path Traversal via model_id in log_outputs API
- Details
-
MLflow before 3.18.0 using the FileStore backend contains a path traversal vulnerability that allows unauthenticated remote attackers to write files outside the intended run directory by supplying a malicious model_id parameter to the log outputs API. Attackers can exploit the unvalidated model_id containing ../ sequences via the POST /api/3.0/mlflow/runs/outputs endpoint to create directories and write a meta.yaml file at arbitrary filesystem locations, limited only by the server account's permissions. FileStore was the default backend before 3.7.0 and is opt-in afterward through MLFLOW_ALLOW_FILE_STORE.
- Database specific
{ "cna_assigner": "VulnCheck", "cwe_ids": [ "CWE-22" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/127xxx/CVE-2026-127202.json" }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/127xxx/CVE-2026-127202.json
- https://github.com/mlflow/mlflow/releases/tag/v3.18.0
- https://nvd.nist.gov/vuln/detail/CVE-2026-127202
- https://www.vulncheck.com/advisories/mlflow-path-traversal-via-model-id-in-log-outputs-api
- https://github.com/mlflow/mlflow/commit/ab5fc795eedc22348253cf687818cf2a16c15282
- https://github.com/mlflow/mlflow/pull/27131
- https://github.com/mlflow/mlflow
Affected packages
Git / github.com/mlflow/mlflow
Affected ranges
- Type
- GIT
- Repo
- https://github.com/mlflow/mlflow
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0" }, { "fixed": "3.18.0" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" }, { "original_tag": "v3.18.0", "range": [ { "fixed": "ba41106d110b67096384da12b6b85473457598db" } ], "source": "REFERENCES_TAG" }, { "range": [ { "fixed": "ab5fc795eedc22348253cf687818cf2a16c15282" } ], "source": "REFERENCES_COMMIT" } ] }