CVE-2026-33881
Windmill is an open-source developer platform for internal code: APIs, background jobs, workflows and UIs. Workspace environment variable values are interpolated into JavaScript string literals without escaping single quotes in the NativeTS executor. A workspace admin who sets a custom environment variable with a value containing `'` can inject arbitrary JavaScript that executes inside every NativeTS script in that workspace. This is a code injection bug in `worker.rs`, not related to the sandbox/NSJAIL topic. Version 1.664.0 patches the issue.
Published:Mar 27, 2026
Last Modified:Apr 8, 2026
EPS:Mar 27, 2026
EPSS Score:0.00057
CVSS Score:7.2
Affected Products
Vendor
Product
Action
Vendor
Windmill
Product
Windmill
Windmill
Windmill
Vendor
Windmill-labs
Product
Windmill
Windmill-labs
Windmill
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
