CVE-2026-2614
A vulnerability in the `_create_model_version()` handler of `mlflow/server/handlers.py` in mlflow/mlflow versions 3.9.0 and earlier allows an unauthenticated remote attacker to read arbitrary files from the server's filesystem.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.61%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A vulnerability in the `_create_model_version()` handler of `mlflow/server/handlers.py` in mlflow/mlflow versions 3.9.0 and earlier allows an unauthenticated remote attacker to read arbitrary files from the server's filesystem. The issue arises when a `CreateModelVersion` request includes the tag `mlflow.prompt.is_prompt`, which bypasses source path validation. This enables an attacker to store an arbitrary local filesystem path as the model version source. The `get_model_version_artifact_handler()` function later uses this source to serve files without verifying the model version's prompt status, leading to a complete confidentiality compromise. This issue is fixed in version 3.10.0.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 3.61% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- lfprojects/mlflow
- Source
- security@huntr.dev
References
- https://github.com/mlflow/mlflow/commit/6e801f4259d96804c73107315b24cef0f6aa115aPatch
- https://huntr.com/bounties/19380271-3fbf-4beb-987e-6fd7069c55e6Exploit, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:34456
- https://access.redhat.com/errata/RHSA-2026:37275
- https://access.redhat.com/errata/RHSA-2026:60520
- https://access.redhat.com/security/cve/CVE-2026-2614
- https://bugzilla.redhat.com/show_bug.cgi?id=2469309
- https://huntr.com/bounties/19380271-3fbf-4beb-987e-6fd7069c55e6Exploit, Third Party Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2614.json
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.