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CVE-2026-22683

Windmill < 1.615.0 Operator Role Missing Authorization Checks RCE

Published: Apr 7, 2026Updated: Apr 24, 2026 Sources: CVE List NVDCWE-862
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.7%
Top 52.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-862

Affected Products

Windmill CE (Community Edition)Windmill Labs
On-prem
DevTools & CI / ci-cd
Windmill EE (Enterprise Edition)Windmill Labs
On-prem
DevTools & CI / ci-cd
flownextcloud
On-prem
Cloud & SaaS / saas-application
windmillwindmill
On-prem
DevTools & CI / ci-cd
windmill labscommercialDevTools & CIaka windmill ce, windmill ee
nextcloudoss-projectDECloud & SaaSaka nextcloud server
windmilloss-projectDevTools & CI

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://chocapikk.com/posts/2026/windfall-nextcloud-flow-windmill-rce/
chocapikk.com
https://github.com/Chocapikk/Windfall
github.com
https://github.com/windmill-labs/windmill/releases/tag/v1.615.0
github.com
and 3 more references View all →

Timeline

Published
Apr 7, 2026
Last Updated
Apr 24, 2026

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