CVE-2026-33881 — Windmill: Rogue Workspace Admins can inject code via unescaped workspace environment variable interpolation in Native…

CVE-2026-33881

Windmill: Rogue Workspace Admins can inject code via unescaped workspace environment variable interpolation in NativeTS executor PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
windmill-labs / windmill	affected < 1.664.0

CWE

CWE-94

References

https://github.com/windmill-labs/windmill/security/advisories/GHSA-8q8j-mm3g-5c2q

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.