CVE-2026-27483 MindsDB has Path Traversal in /api/files Leading to Remote Code Execution

High 8.8 Published Updated

An authenticated attacker can exploit a path traversal flaw in the file upload API to write arbitrary files and execute remote code on the server.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-27483?

CVE-2026-27483 is a high-severity path traversal vulnerability in mindsdb, published on 24 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

MindsDB is a platform for building artificial intelligence from enterprise data. Prior to version 25.9.1.1, there is a path traversal vulnerability in Mindsdb's /api/files interface, which an authenticated attacker can exploit to achieve remote command execution. The vulnerability exists in the "Upload File" module, which corresponds to the API endpoint /api/files. Since the multipart file upload does not perform security checks on the uploaded file path, an attacker can perform path traversal by using `../` sequences in the filename field. The file write operation occurs before calling clear_filename and save_file, meaning there is no filtering of filenames or file types, allowing arbitrary content to be written to any path on the server. Version 25.9.1.1 patches the issue.

Weakness: CWE-22

Which versions are affected by CVE-2026-27483?

3 open source packages ship an affected version, including mindsdb. It affects 1 product.

PackageAffectedFixed in
mindsdb PyPIAll versions25.9.1.1
mindsdb PyPIAll versions25.9.1.1
mindsdb PyPIAll versions25.9.1.1

Products include Mindsdb Mindsdb.

How do I fix CVE-2026-27483?

Upgrade mindsdb to 25.9.1.1 or later.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-27483 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-27483 exists.

Public exploit code: 1 Exploit-DB entry, 1 Nuclei template and 2 proofs of concept on GitHub.

Sources

Also known as GHSA-4894-xqv6-vrfq, PYSEC-2026-2205.

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