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

Quick assessment

Affected
mlflow mlflow/mlflow
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MLflow是MLflow开源的一个简化机器学习开发的平台，包括跟踪实验、将代码打包成可重复的运行以及共享和部署模型。 MLflow 3.9.0及之前版本存在路径遍历漏洞，该漏洞源于_create_model_version处理程序在CreateModelVersion请求包含mlflow.prompt.is_prompt标签时绕过源路径验证，允许未经身份验证的远程攻击者从服务器文件系统读取任意文件，导致机密性完全泄露。

AI Predicted 9.8 Difficulty: Easy EPSS 3.21% · P88

Public Exploits 1

Nuclei · 1 CVE-2026-2614.yaml [template]

Possible ATT&CK Techniques 1 AI

T1135 · Network Share Discovery

Affected Version Matrix 1

VendorProduct Version RangeStatus
mlflow mlflow/mlflow unspecified< 3.10.0 affected
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I. Basic Information for CVE-2026-2614

Vulnerability Information
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Vulnerability Title
Arbitrary File Read via Prompt Tag Source Validation Bypass in mlflow/mlflow
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
MLflow 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MLflow是MLflow开源的一个简化机器学习开发的平台，包括跟踪实验、将代码打包成可重复的运行以及共享和部署模型。 MLflow 3.9.0及之前版本存在路径遍历漏洞，该漏洞源于_create_model_version处理程序在CreateModelVersion请求包含mlflow.prompt.is_prompt标签时绕过源路径验证，允许未经身份验证的远程攻击者从服务器文件系统读取任意文件，导致机密性完全泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
mlflow mlflow/mlflow unspecified ~ 3.10.0 -

II. Public POCs for CVE-2026-2614

# POC Description Source Link Shenlong Link
1 mlflow mlflow <= 3.9.0 contains a path traversal caused by bypassing source path validation via the mlflow.prompt.is_prompt tag in CreateModelVersion request, letting unauthenticated remote attackers read arbitrary files. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-2614.yaml POC Details
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Success marker: VULNERABLE: arbitrary file /flag.txt read via model-version get-artifact endpoint; exfiltrated token: PROOF_7e3b4e19afd4f3e8
Reproduction recording is a Pro+ exclusive
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claude_code · 4601 chars
GitHub 复现环境（可 clone 直接跑）
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III. Intelligence Information for CVE-2026-2614

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Patches & Fixes for CVE-2026-2614 (1)

Vendor Advisories for CVE-2026-2614 (1)

IV. Related Vulnerabilities

Same product: mlflow/mlflow
Same vendor: mlflow
Same weakness: CWE-22

V. Comments for CVE-2026-2614

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