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CVE-2026-29059— Windmill: SUPERADMIN_SECRET (rarely used) can be accessed publicly

Quick assessment

Affected
windmill-labs windmill
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.

WindMill是Lukasavicus个人开发者的一个免费的开源工具。用于控制 Python 中的作业执行。 Windmill 1.603.3之前版本存在路径遍历漏洞，该漏洞源于get_log_file端点中的filename参数未经清理直接拼接为文件路径，可能导致攻击者使用../序列读取服务器上的任意文件。

AI Predicted 5.3 Difficulty: Easy EPSS 2.12% · P81

Public Exploits 1

Nuclei · 1 CVE-2026-29059.yaml [template]

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System
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I. Basic Information for CVE-2026-29059

Vulnerability Information
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Vulnerability Title
Windmill: SUPERADMIN_SECRET (rarely used) can be accessed publicly
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
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
WindMill 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WindMill是Lukasavicus个人开发者的一个免费的开源工具。用于控制 Python 中的作业执行。 Windmill 1.603.3之前版本存在路径遍历漏洞，该漏洞源于get_log_file端点中的filename参数未经清理直接拼接为文件路径，可能导致攻击者使用../序列读取服务器上的任意文件。
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
windmill-labs windmill < 1.603.3 -

II. Public POCs for CVE-2026-29059

# POC Description Source Link Shenlong Link
1 Windmill < 1.603.3 contains a path traversal caused by unsanitized filename parameter in get_log_file endpoint, letting unauthenticated attackers read arbitrary files on the server, exploit requires no authentication. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-29059.yaml POC Details
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III. Intelligence Information for CVE-2026-29059

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Vendor Advisories for CVE-2026-29059 (1)

Vendor Pages for CVE-2026-29059 (1)

IV. Related Vulnerabilities

Same product: windmill
Same vendor: windmill-labs
Same weakness: CWE-22

V. Comments for CVE-2026-29059

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