{"cve":"CVE-2026-55883","nvd":{"published":"2026-07-10T22:16:44.287","modified":"2026-10-25T15:10:00.147","status":"Deferred","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.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","score":8.3},"cvss_v3":null,"cwes":["CWE-345"],"references":["https://github.com/tilt-dev/tilt/commit/47393fba7f6ef5e305d5e814551feef8e4acbc0a","https://github.com/tilt-dev/tilt/pull/6776","https://github.com/tilt-dev/tilt/releases/tag/v0.37.4","https://github.com/tilt-dev/tilt/security/advisories/GHSA-6m68-r693-78qx"],"products":[],"source":"nvd","synced_at":"2026-10-25T17:50:06.907763985+00:00"},"epss":{"cve":"CVE-2026-55883","score":0.00262,"percentile":0.17873,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-6m68-r693-78qx","url":"https://osv.dev/vulnerability/GHSA-6m68-r693-78qx","summary":"Tilt: Cross-site WebSocket hijacking of the Tilt HUD stream","modified":"2026-07-21T14:00:36.150541665Z","packages":[{"ecosystem":"Go","name":"github.com/tilt-dev/tilt","purl":"pkg:golang/github.com/tilt-dev/tilt","ranges":[">=0.24.0 <0.37.4"],"fixed":["0.37.4"]}]},{"id":"GO-2026-5181","url":"https://osv.dev/vulnerability/GO-2026-5181","summary":"Tilt: Cross-site WebSocket hijacking of the Tilt HUD stream in github.com/tilt-dev/tilt","modified":"2026-06-25T19:45:12.743628984Z","packages":[{"ecosystem":"Go","name":"github.com/tilt-dev/tilt","purl":"pkg:golang/github.com/tilt-dev/tilt","ranges":[">=0.24.0 <0.37.4"],"fixed":["0.37.4"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}