{"id":"EUVD-2026-43112","revision":null,"records":[{"revision":"86684895ee5d4198b938b70dc32f4a4e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-55883","aliases":[],"title":"Tilt: Cross-site WebSocket hijacking of the Tilt HUD stream","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.","state":0,"publishedAt":"2026-07-10T21:38:18.081+00:00","modifiedAt":"2026-07-14T14:14:47.863+00:00","affected":[{"ecosystem":"Vendor product","name":"tilt","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"tilt-dev\",\n                    \"product\": \"tilt\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 0.24.0, < 0.37.4\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","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,"severity":"HIGH"}],"references":["https://github.com/tilt-dev/tilt/security/advisories/GHSA-6m68-r693-78qx","https://github.com/tilt-dev/tilt/pull/6776","https://github.com/tilt-dev/tilt/commit/47393fba7f6ef5e305d5e814551feef8e4acbc0a","https://github.com/tilt-dev/tilt/releases/tag/v0.37.4"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-55883","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-55883","identifiers":["CVE-2026-55883"]},"retained":false,"historicalAffected":[]},{"revision":"e06398035d42422e8fbe2a73f3b2f974","observedAt":"2026-11-07T12:34:42.95+00:00","statement":{"source":"euvd","id":"EUVD-2026-43112","aliases":["CVE-2026-55883","GHSA-6m68-r693-78qx"],"title":"Tilt defines dev environments as code for microservice apps on Kubernetes. 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This issue is fixed in version 0.37.4.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","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,"severity":null}],"references":["https://github.com/tilt-dev/tilt/security/advisories/GHSA-6m68-r693-78qx","https://github.com/tilt-dev/tilt/pull/6776","https://github.com/tilt-dev/tilt/commit/47393fba7f6ef5e305d5e814551feef8e4acbc0a","https://github.com/tilt-dev/tilt/releases/tag/v0.37.4"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-43112","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Jul 10, 2026, 9:38:18 PM","dateUpdated":"Jul 14, 2026, 2:14:47 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. 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This issue is fixed in version 0.37.4.","state":0,"publishedAt":"2026-07-10T22:16:44.287+00:00","modifiedAt":"2026-10-25T15:10:00.147+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":8.3,"severity":"HIGH"}],"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"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-55883","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-345"],"productCriteria":[],"sourceDates":{"published":"2026-07-10T22:16:44.287","lastModified":"2026-10-25T15:10:00.147"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-55883","identifiers":["CVE-2026-55883"]},"retained":false,"historicalAffected":[]},{"revision":"f17076f93198402db1b01600ba7a37e7","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GHSA-6m68-r693-78qx","aliases":["CVE-2026-55883","GO-2026-5181"],"title":"Tilt: Cross-site WebSocket hijacking of the Tilt HUD stream","description":"## 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=<token>`. 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 bound to a non-loopback address (`tilt up --host 0.0.0.0`, or `TILT_HOST` set).\n- Network reachability to the listener (default port `10350`).\n\n### Not affected\n- The default loopback-only bind is not reachable from the network.\n\n## Workarounds\nUse the default loopback bind (omit `--host`, unset `TILT_HOST`). No complete workaround short of upgrading for non-loopback deployments.","state":0,"publishedAt":"2026-06-19T13:53:35+00:00","modifiedAt":"2026-07-21T14:00:36.1505417+00:00","affected":[{"ecosystem":"Go","name":"github.com/tilt-dev/tilt","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0.24.0"},{"kind":"fixed","version":"0.37.4"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"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":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/tilt-dev/tilt/security/advisories/GHSA-6m68-r693-78qx","https://nvd.nist.gov/vuln/detail/CVE-2026-55883","https://github.com/tilt-dev/tilt/pull/6776","https://github.com/tilt-dev/tilt/commit/47393fba7f6ef5e305d5e814551feef8e4acbc0a","https://github.com/tilt-dev/tilt","https://github.com/tilt-dev/tilt/releases/tag/v0.37.4"],"sourceUrl":"https://github.com/advisories/GHSA-6m68-r693-78qx","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-6m68-r693-78qx","identifiers":["GHSA-6m68-r693-78qx","CVE-2026-55883","GO-2026-5181"]},"retained":false,"historicalAffected":[]},{"revision":"f16ae1186da14b98a98ce5bc7bd8ffba","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2026-5181","aliases":["CVE-2026-55883","GHSA-6m68-r693-78qx"],"title":"Tilt: Cross-site WebSocket hijacking of the Tilt HUD stream in github.com/tilt-dev/tilt","description":"Tilt: Cross-site WebSocket hijacking of the Tilt HUD stream in github.com/tilt-dev/tilt","state":0,"publishedAt":"2026-06-25T18:43:15+00:00","modifiedAt":"2026-06-25T19:45:12.743629+00:00","affected":[{"ecosystem":"Go","name":"github.com/tilt-dev/tilt","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0.24.0"},{"kind":"fixed","version":"0.37.4"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://github.com/tilt-dev/tilt/security/advisories/GHSA-6m68-r693-78qx","https://github.com/tilt-dev/tilt/pull/6776","https://github.com/tilt-dev/tilt/releases/tag/v0.37.4"],"sourceUrl":"https://osv.dev/vulnerability/GO-2026-5181","license":"OSV · upstream source license applies","key":"osv:GO-2026-5181","identifiers":["GO-2026-5181","CVE-2026-55883","GHSA-6m68-r693-78qx"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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