Windmill CE and EE versions 1.276.0 through 1.603.2 contain an SQL injection vulnerability in the folder ownership management functionality that allows authenticated attackers to inject SQL through the owner parameter. An attacker can use the injection to read sensitive data such as the JWT signing secret and administrative user identifiers, forge an administrative token, and then execute arbitrary code via the workflow execution endpoints.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 7
https://apps.nextcloud.com/apps/flow/releases
disclosure@vulncheck.com
https://chocapikk.com/posts/2026/windfall-nextcloud-flow-windmill-rce/
disclosure@vulncheck.com
https://github.com/Chocapikk/Windfall
disclosure@vulncheck.com
https://github.com/windmill-labs/windmill/commit/942fb629210ebb287f48467d1535ff…
disclosure@vulncheck.com
https://github.com/windmill-labs/windmill/releases/tag/v1.603.3
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/windmill-file-ownership-handling-sqli-rce
disclosure@vulncheck.com
https://www.windmill.dev/
disclosure@vulncheck.com