CVE-2026-23696

Windmill < 1.603.3 File Ownership Handling SQLi RCE

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.

Affected

Windmill Labs · Windmill CE (Community Edition) · Windmill EE (Enterprise Edition)

CVSS v4.0 VULNCHECK

9.4 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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

CVSS v3.1 VULNCHECK

9.9 CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS

13.58% chance of exploitation in the next 30 days, 96th percentile

Nuclei

critical · CWE-89

Published

2026-04-07

Updated

2026-07-14

Proof-of-concept exploits (2)

• https://chocapikk.com/posts/2026/windfall-nextcloud-flow-windmill-rce/
• Chocapikk/Windfall18★ · 2026-04-07

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-23696.yaml

References

• CVE Record
• NVD entry