What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-06 · updated 2026-06-17
• Weakness: CWE-22

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.

Affected products

• windmill-labs windmill: before 1.603.3 — fixed in 1.603.3

How to fix

Upgrade to a fixed version: windmill-labs windmill 1.603.3. Check the vendor advisory for mitigations.

References

• https://github.com/windmill-labs/windmill/releases/tag/v1.603.3
• https://github.com/windmill-labs/windmill/security/advisories/GHSA-24fr-44f8-fqwg
• https://github.com/Chocapikk/Windfall

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