{"items":[{"id":"NVI-00016298","kind":"vulnerability","title":"Tilt: Cross-site WebSocket hijacking of the Tilt HUD stream","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-6m68-r693-78qx","CVE-2026-55883"],"plain_summary":"GitHub lists this reviewed advisory for github.com/tilt-dev/tilt. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-64efd60fb692d4ecefc44d99fb734f62"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-64efd60fb692d4ecefc44d99fb734f62","url":"https://github.com/advisories/GHSA-6m68-r693-78qx","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-6m68-r693-78qx","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T22:34:49.300Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-64efd60fb692d4ecefc44d99fb734f62"],"technology":"github.com/tilt-dev/tilt","known_exclusions":[],"conditions_summary":"## Summary\nThe Tilt HUD WebSocket (`/ws/view`) is gated by a CSRF token, but the token is served by an unauthenticated endpoint and the upgrader accepts any client that omits an `Origin` header. When the HUD is network-exposed, an attacker can open the HUD stream and read the developer's session state.\n\n## Details\nThe upgrader accepts a connection when the `csrf` query parameter matches a process-wide token (`websocketCSRFToken`). That token is served as `text/plain` by an unauthenticated handler (`WebsocketToken`, mounted at `/api/websocket_token`), so any reachable caller can fetch it and connect to `/ws/view?csrf=`. When the parameter does not match, the upgrader falls back to a same-origin check that returns true when the `Origin` header is absent, so a non-browser client that omits `Origin` is accepted anyway. The token has no per-session binding.\n\n## Impact\nAn attacker who can reach the HUD listener can open the HUD WebSocket and receive the full view stream — session state, Tiltfile contents, resource statuses, and continued updates — defeating the intended anti-CSWSH protection.\n\n### Conditions for exploitation\n- Affected version in `>= 0.24.0, <= 0.37.3`.\n- HUD boun","public_affected_ranges":[">= 0.24.0, <= 0.37.3"]}],"null_published_at":"2026-11-04T10:04:27.929Z","source_updated_at":"2026-07-21T13:44:52.000Z","source_disclosed_at":"2026-06-19T13:53:35.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-03T22:34:49.300Z"}],"next_cursor":null,"snapshot_revision":"42594"}