CVE-2026-22683
8.8 · HIGHOverview
CVE-2026-22683 is a high-severity vulnerability affecting nextcloud flow. It was published on April 7, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
Windmill versions 1.56.0 through 1.614.0 contain a missing authorization vulnerability that allows users with the Operator role to perform prohibited entity creation and modification actions via the backend API. Although Operators are documented and priced as unable to create or modify entities, the API does not enforce the Operator restriction on workspace endpoints, allowing an Operator to create and update scripts, flows, apps, and raw_apps. Since Operators can also execute scripts via the jobs API, this allows direct privilege escalation to remote code execution within the Windmill deployment. This vulnerability has existed since the introduction of the Operator role in version 1.56.0.
Remediation
Check the references section for vendor advisories and patches from nextcloud. Update flow to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| nextcloud | flow | 1.0.0 | Affected |
| windmill | windmill | 1.56.0 | Affected |
References
Frequently Asked Questions
What is CVE-2026-22683?
CVE-2026-22683 is a high-severity vulnerability affecting nextcloud flow. It was published on April 7, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2026-22683?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-22683?
Check the references section for vendor advisories and patches from nextcloud. Update flow to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-22683?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-22683 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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