{"id":"CVE-2026-55571","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-55571","summary":"djust provides Phoenix LiveView-style reactive server-side rendering for Django with Rust-powered performance. Prior to 1.0.4, LiveViewConsumer.handle_mount sends a `{\"type\":\"navigate\",\"to\":...}`…","details":"djust provides Phoenix LiveView-style reactive server-side rendering for Django with Rust-powered performance. Prior to 1.0.4, LiveViewConsumer.handle_mount sends a `{\"type\":\"navigate\",\"to\":...}` frame when login_required, permission_required, or a redirecting on_mount hook denies a LiveView mount, but returns without closing the WebSocket or clearing self.view_instance. A browser follows the redirect, but a raw WebSocket client can ignore it and retain the mounted socket. Because LiveViewConsumer.handle_event does not recheck authentication or authorization, the client can send `{\"type\":\"event\",...}` frames that invoke @event_handler methods without an authenticated session, including through handle_live_redirect_mount, enabling unauthorized sensitive reads or mutations. This issue is fixed in version 1.0.4.","published":"2026-08-25T17:17:32.547","modified":"2026-08-25T17:17:32.547","cvss":{"score":8.2,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/djust-org/djust/commit/1ae8aa9246b80477de7ddc4d90319a3b267bef04","label":"djust-org/djust@1ae8aa9"},"references":[{"type":"WEB","url":"https://github.com/djust-org/djust/commit/1ae8aa9246b80477de7ddc4d90319a3b267bef04"},{"type":"WEB","url":"https://github.com/djust-org/djust/pull/1780"},{"type":"WEB","url":"https://github.com/djust-org/djust/releases/tag/v1.0.4"},{"type":"WEB","url":"https://github.com/djust-org/djust/security/advisories/GHSA-xx4j-w367-7247"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-25T17:17:32.547"}}