CVE-2026-29059 Windmill: SUPERADMIN_SECRET (rarely used) can be accessed publicly
An unauthenticated path traversal in Windmill allows attackers to read arbitrary server files, including sensitive secrets, via the get_log_file endpoint.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-29059?
CVE-2026-29059 is a medium-severity path traversal vulnerability in windmill-labs windmill, published on 6 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-22
Which versions are affected by CVE-2026-29059?
It affects 1 product.
Products include Windmill Windmill.
How do I fix CVE-2026-29059?
No fix has been published for CVE-2026-29059 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-29059 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-29059 exists.
Public exploit code: 1 Nuclei template and 1 proofs of concept on GitHub.
Other vulnerabilities in windmill-labs windmill
Sources
Also known as GHSA-24fr-44f8-fqwg.