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OpenAdvisories
High · 8.3 CVE-2026-55883 EUVD-2026-43112GHSA-6m68-r693-78qxGO-2026-5181

Tilt: Cross-site WebSocket hijacking of the Tilt HUD stream

Published Jul 10, 2026 · Updated Jul 14, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
tilt-dev tilt >= 0.24.0, < 0.37.4 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 govulncheck-vulndb 0.0.20260723T184607-160000.1.1 openSUSE-SU-2026:21483-1

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/tilt-dev/tilt >= 0.24.0, < 0.37.4 0.37.4 GHSA-6m68-r693-78qx

Advisories 1

References