CVE-2026-29059
Windmill: SUPERADMIN_SECRET (rarely used) can be accessed publicly
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.
INFO
Published Date :
March 6, 2026, 8:16 a.m.
Last Modified :
April 14, 2026, 5:48 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update Windmill to version 1.603.3 or later.
- Verify the get_log_file endpoint is protected.
- Remove any unnecessary file access permissions.
Public PoC/Exploit Available at Github
CVE-2026-29059 has a 2 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-29059.
| URL | Resource |
|---|---|
| https://github.com/windmill-labs/windmill/releases/tag/v1.603.3 | Release Notes |
| https://github.com/windmill-labs/windmill/security/advisories/GHSA-24fr-44f8-fqwg | Vendor Advisory |
| https://github.com/Chocapikk/Windfall | Product |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-29059 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-29059
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Windfall - Unauthenticated RCE exploit chain for Windmill & Nextcloud Flow (CVE-2026-29059). Path traversal + credential leak + PostgreSQL heap dump + Nextcloud AppAPI takeover.
cve exploit nextcloud path-traversal pentesting python rce security sql-injection windmill security-research cve-2026-29059 cve-2026-23696 cve-2026-22683
Python Ruby Shell Dockerfile
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-29059 vulnerability anywhere in the article.
-
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The following table lists the changes that have been made to the
CVE-2026-29059 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 14, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Added CPE Configuration OR *cpe:2.3:a:windmill:windmill:*:*:*:*:*:*:*:* versions up to (excluding) 1.603.3 Added Reference Type CISA-ADP: https://github.com/Chocapikk/Windfall Types: Product Added Reference Type GitHub, Inc.: https://github.com/windmill-labs/windmill/releases/tag/v1.603.3 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/windmill-labs/windmill/security/advisories/GHSA-24fr-44f8-fqwg Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Apr. 07, 2026
Action Type Old Value New Value Added Reference https://github.com/Chocapikk/Windfall -
New CVE Received by [email protected]
Mar. 06, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-22 Added Reference https://github.com/windmill-labs/windmill/releases/tag/v1.603.3 Added Reference https://github.com/windmill-labs/windmill/security/advisories/GHSA-24fr-44f8-fqwg