{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-55571","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-16T23:11:20.214Z","datePublished":"2026-08-25T16:05:49.069Z","dateUpdated":"2026-08-25T17:56:03.253Z"},"containers":{"cna":{"title":"djust authentication bypass: a login_required / on_mount LiveView mount redirect does not close the WebSocket, allowing an unauthenticated client to dispatch event-handler calls","problemTypes":[{"descriptions":[{"cweId":"CWE-285","lang":"en","description":"CWE-285: Improper Authorization","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-306","lang":"en","description":"CWE-306: Missing Authentication for Critical Function","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/djust-org/djust/security/advisories/GHSA-xx4j-w367-7247","tags":["x_refsource_CONFIRM"],"url":"https://github.com/djust-org/djust/security/advisories/GHSA-xx4j-w367-7247"},{"name":"https://github.com/djust-org/djust/pull/1780","tags":["x_refsource_MISC"],"url":"https://github.com/djust-org/djust/pull/1780"},{"name":"https://github.com/djust-org/djust/commit/1ae8aa9246b80477de7ddc4d90319a3b267bef04","tags":["x_refsource_MISC"],"url":"https://github.com/djust-org/djust/commit/1ae8aa9246b80477de7ddc4d90319a3b267bef04"},{"name":"https://github.com/djust-org/djust/releases/tag/v1.0.4","tags":["x_refsource_MISC"],"url":"https://github.com/djust-org/djust/releases/tag/v1.0.4"}],"affected":[{"vendor":"djust-org","product":"djust","versions":[{"version":"< 1.0.4","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-08-25T16:05:49.069Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-xx4j-w367-7247","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/djust-org/djust/security/advisories/GHSA-xx4j-w367-7247","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-25T17:53:50.399545Z","id":"CVE-2026-55571","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-25T17:56:03.253Z"}}]}}