CVE-2026-23696
Windmill < 1.603.3 File Ownership Handling SQLi RCE
CVSS Score
9.9
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-89 |
| Vendor | windmill labs |
| Product | windmill ce (community edition) |
| Published | Apr 7, 2026 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Windmill Labs / Windmill CE (Community Edition)
1.276.0 ≤ 1.603.2
Windmill Labs / Windmill EE (Enterprise Edition)
1.276.0 ≤ 1.603.2
Nextcloud / Flow
1.0.0 ≤ 1.2.2
References
chocapikk.com: https://chocapikk.com/posts/2026/windfall-nextcloud-flow-windmill-rce/ github.com: https://github.com/Chocapikk/Windfall github.com: https://github.com/windmill-labs/windmill/releases/tag/v1.603.3 github.com: https://github.com/windmill-labs/windmill/commit/942fb629210ebb287f48467d1535ffde3a3eeafe windmill.dev: https://www.windmill.dev/ apps.nextcloud.com: https://apps.nextcloud.com/apps/flow/releases vulncheck.com: https://www.vulncheck.com/advisories/windmill-file-ownership-handling-sqli-rce
Credits
Valentin Lobstein (Chocapikk)