Information disclosure in Windmill - CVE-2026-26964
Published: February 20, 2026
Vulnerability identifier: #VU123114
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2026-26964
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: Windmill Labs
Affected software:
Windmill
Windmill
Detailed vulnerability description
The vulnerability allows a remote user to gain access to potentially sensitive information.
The vulnerability exists due to the GET /api/w/{workspace}/workspaces/get_settings endpoint returns the slack_oauth_client_secret to any authenticated workspace member. A remote administrator can gain unauthorized access to sensitive information on the system.
How to mitigate CVE-2026-26964
Install updates from vendor's website.