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Vulnerability · Published May 11, 2026 · Assigned by @huntr_ai

CVE-2026-2614Arbitrary File Read via Prompt Tag Source Validation Bypass in mlflow/mlflow

High 7.5

In plain English

A high-severity path traversal in mlflow/mlflow from mlflow. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 3.7% (higher than 90% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei. Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)3.7%top 10.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack tooling1Nuclei

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
PyPImlflow3.10.0GHSA-42h5-h8qh-vv9v
PyPImlflow3.10.0PYSEC-2026-2654

Affected products (as reported)

VendorProductVersions
mlflow mlflow/mlflow unspecified – before 3.10.0

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References