CVE-2026-55883 - Tilt: Cross-site WebSocket hijacking of the Tilt HUD stream
CVE ID :CVE-2026-55883
Published : July 10, 2026, 10:16 p.m. | 29 minutes ago
Description :Tilt defines dev environments as code for microservice apps on Kubernetes. From 0.24.0 through 0.37.3, the Tilt HUD WebSocket at /ws/view is gated by a CSRF token, but the token is served by the unauthenticated /api/websocket_token endpoint and the upgrader accepts clients that omit an Origin header. When the HUD is network-exposed, an attacker who can reach the listener can open the HUD WebSocket and receive the full view stream, including session state, Tiltfile contents, resource statuses, and continued updates. This issue is fixed in version 0.37.4.
Severity: 8.3 | HIGH
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Published : July 10, 2026, 10:16 p.m. | 29 minutes ago
Description :Tilt defines dev environments as code for microservice apps on Kubernetes. From 0.24.0 through 0.37.3, the Tilt HUD WebSocket at /ws/view is gated by a CSRF token, but the token is served by the unauthenticated /api/websocket_token endpoint and the upgrader accepts clients that omit an Origin header. When the HUD is network-exposed, an attacker who can reach the listener can open the HUD WebSocket and receive the full view stream, including session state, Tiltfile contents, resource statuses, and continued updates. This issue is fixed in version 0.37.4.
Severity: 8.3 | HIGH
Visit the link for more details, such as CVSS details, affected products, timeline, and more...