CVE-2026-55571

{"id": "CVE-2026-55571", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-55571", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-25T17:53:50.399545Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 4.2, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "djust-org", "product": "djust", "versions": [{"status": "affected", "version": "< 1.0.4"}]}]}], "published": "2026-08-25T17:17:32.547", "references": [{"url": "https://github.com/djust-org/djust/commit/1ae8aa9246b80477de7ddc4d90319a3b267bef04", "source": "security-advisories@github.com"}, {"url": "https://github.com/djust-org/djust/pull/1780", "source": "security-advisories@github.com"}, {"url": "https://github.com/djust-org/djust/releases/tag/v1.0.4", "source": "security-advisories@github.com"}, {"url": "https://github.com/djust-org/djust/security/advisories/GHSA-xx4j-w367-7247", "source": "security-advisories@github.com"}, {"url": "https://github.com/djust-org/djust/security/advisories/GHSA-xx4j-w367-7247", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-285"}, {"lang": "en", "value": "CWE-306"}]}], "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."}], "lastModified": "2026-09-09T21:07:31.353", "sourceIdentifier": "security-advisories@github.com"}