CVE-2026-23696
CriticalPublic exploitWindmill 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.
Published Apr 7, 2026 · Updated Sep 5, 2026 · Also known as EUVD-2026-19748, GHSA-34m2-qrpf-6v7q
Key Facts
Patch immediately- CVE-2026-23696 is a critical-severity vulnerability (CVSS 9.4 v4) affecting Flow, Windmill CE (Community Edition), Windmill EE (Enterprise Edition).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 14% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
CVSS v4
9.4
CVSS: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
EPSS (30-day exploit likelihood)
14%
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2026-23696 brief as a PDF
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Description
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 Products
6 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Flow | See advisory | n/a |
| Windmill CE (Community Edition) | >= 1.276.0 | n/a |
| Windmill EE (Enterprise Edition) | >= 1.276.0 | n/a |
Timeline
Publicly disclosed
Apr 7, 2026
Last updated
Sep 5, 2026
Weakness Type
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
References
- advisoryhttps://apps.nextcloud.com/apps/flow/releases
- advisoryhttps://chocapikk.com/posts/2026/windfall-nextcloud-flow-windmill-rce/
- advisoryhttps://github.com/Chocapikk/Windfall
- advisoryhttps://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23696.json
- advisoryhttps://github.com/windmill-labs/windmill/commit/942fb629210ebb287f48467d1535ffde3a3eeafe
FAQ
Common Questions.
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.
Affected: Flow; Windmill CE (Community Edition) versions >= 1.276.0; Windmill EE (Enterprise Edition) versions >= 1.276.0. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
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