CVE-2026-29059

HIGH NUCLEI LAB

Windmill < 1.603.3 - Unauthenticated Path Traversal via Get Log File Endpoint

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2026-29059. PoCs published by Chocapikk. A Nuclei detection template is also available.

AI-analyzed exploit summary This repository contains a sophisticated exploit framework for CVE-2026-29059, targeting unauthenticated path traversal in Windmill and Nextcloud Flow, leading to credential leaks and remote code execution. The exploit includes Metasploit modules, Docker labs for testing, and detailed documentation.

Description

Windmill is an open-source developer platform for internal code: APIs, background jobs, workflows and UIs. Prior to version 1.603.3, an unauthenticated path traversal vulnerability exists in Windmill's get_log_file endpoint "(/api/w/{workspace}/jobs_u/get_log_file/{filename})". The filename parameter is concatenated into a file path without sanitization, allowing an attacker to read arbitrary files on the server using ../ sequences. This issue has been patched in version 1.603.3.

Exploits (1)

nomisec WORKING POC 1 stars
by Chocapikk · poc
https://github.com/Chocapikk/Windfall

This repository contains a sophisticated exploit framework for CVE-2026-29059, targeting unauthenticated path traversal in Windmill and Nextcloud Flow, leading to credential leaks and remote code execution. The exploit includes Metasploit modules, Docker labs for testing, and detailed documentation.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Complex
Reliability
Reliable
Target: Windmill v1.309.0–v1.603.2, Nextcloud Flow v1.0.0–v1.2.2
No auth needed
Prerequisites: Network access to vulnerable endpoint · Docker socket access (for host escape)
devstral-2 · analyzed Apr 09, 2026 Full analysis →

Nuclei Templates (1)

Windmill/Nextcloud Flow < 1.603.3 - Unauthenticated Path Traversal
CRITICALVERIFIEDby 0x_Akoko
Shodan: http.html:"Windmill" http.html:"svelte-global-loader"
FOFA: app="Windmill"

References (3)

Core 3

Scores

CVSS v3 7.5
EPSS 0.2331
EPSS Percentile 96.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Lab Environment

COMMUNITY SUSPICIOUS
Community Lab
docker pull nextcloud/all-in-one:latest
docker pull ghcr.io/windmill-labs/windmill:1.394.4
docker pull ghcr.io/windmill-labs/windmill:1.603.2
docker pull curlimages/curl:latest

Details

CWE
CWE-22
Status published
Products (2)
windmill/windmill < 1.603.3
windmill-labs/windmill < 1.603.3
Published Mar 06, 2026
Tracked Since Mar 06, 2026