{"id":"CVE-2026-67448","revision":"3a9432e3b4074417a74a35fd2188c987","records":[{"revision":"3a9432e3b4074417a74a35fd2188c987","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-67448","aliases":[],"title":"Mailpit: WebSocket origin check bypass via percent-encoded path (regression of CVE-2026-22689)","description":"Mailpit is an email testing tool and API for developers. From 1.29.0 until 1.30.6, Mailpit's server/server.go origin middleware checks the raw RequestURI for the /api/ prefix while Go's ServeMux routes using the percent-decoded URL path, and server/websockets/client.go configures websocket.Upgrader.CheckOrigin to return true. A malicious website can request /%61pi/events, skip corsOriginAccessControl(), reach the /api/events WebSocket handler, and receive live message IDs, Message-Id values, sender and recipient fields, subjects, tags, and body snippets from an unauthenticated default Mailpit instance after the user visits the site. This is a regression of the earlier WebSocket origin protection and does not affect deployments protected by --ui-auth-file. This issue is fixed in version 1.30.6.","state":0,"publishedAt":"2026-08-20T21:29:06.185+00:00","modifiedAt":"2026-08-21T11:31:27.439+00:00","affected":[{"ecosystem":"Vendor product","name":"mailpit","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"axllent\",\n                    \"product\": \"mailpit\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 1.29.0, < 1.30.6\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","score":6.5,"severity":"MEDIUM"}],"references":["https://github.com/axllent/mailpit/security/advisories/GHSA-8r62-w5wh-fc5m","https://github.com/axllent/mailpit/commit/fbe5e006c3f1682b819df58b4a932d7a84920be9","https://github.com/axllent/mailpit/releases/tag/v1.30.6"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-67448","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-67448","identifiers":["CVE-2026-67448"]},"retained":false,"historicalAffected":[]}],"coverage":[]}