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title: "Hackers Exploit Windmill Flaw to Read Arbitrary Server Files Without Authentication — Stuff That Spins"
description: "A high-severity security flaw impacting open-source developer platform Windmill has come under active exploitation in the wild, per VulnCheck. The vulnerabilit…"
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date: "2026-07-22T12:36:36+00:00"
modified: "2026-07-22T18:03:04.642438+00:00"
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# Hackers Exploit Windmill Flaw to Read Arbitrary Server Files Without Authentication

**Source:** Unknown  
**Published:** July 22, 2026  
**Original:** https://thehackernews.com/2026/07/hackers-exploit-windmill-flaw-to-read.html  

## On this page

- [Overview](#overview)

<a id="overview"></a>

## Overview

A high-severity security flaw impacting open-source developer platform Windmill has come under active exploitation in the wild, per VulnCheck. The vulnerability in question is CVE-2026-29059 (CVSS score: 7.5), a case of unauthenticated path traversal impacting Windmill's "get_log_file" endpoint ("/api/w/{workspace}/jobs_u/get_log_file/{filename}"). "The filename parameter is concatenated into

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