EUVD-2026-81303
GHSA-xhhm-f6hp-2qwj
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Anonymous remote WebSocket mount bypasses auth (PR:N/AC:L/AV:N/UI:N) reaching admin read and create/change/delete (C:H/I:H); no direct availability impact (A:N), same security scope (S:U).
Primary rating from Vendor (https://github.com/djust-org/djust).
CVSS VectorVendor: https://github.com/djust-org/djust
Lifecycle Timeline
5DescriptionCVE.org
Impact
The live (WebSocket) transport authorizes a mount via check_view_auth, not Django's View.dispatch() chain. As a result, standard Django authorization - LoginRequiredMixin, PermissionRequiredMixin, UserPassesTestMixin, @method_decorator(login_required, name="dispatch"), and custom dispatch() guards - and the djust admin extension's staff gate (applied only in the HTTP as_view wrapper) were enforced on the initial HTTP GET but silently bypassed over WebSocket, where all events and state flow. An anonymous or under-privileged client could open a WebSocket and mount such a view - including admin list/create/change/delete - and dispatch its handlers.
Patches
Fixed in djust 1.0.7. check_view_auth now honors the Django AccessMixin family on every transport; a new system check S004 fails loud at startup on auth patterns the runtime cannot safely replay (decorator/overridden-dispatch forms); and the admin base mixin declares login_required = True + an active-staff check_permissions gate.
Workarounds
Gate views using djust's login_required / permission_required / check_permissions attributes (honored on all transports) rather than HTTP-only mixins/decorators.
Articles & Coverage 1
AnalysisAI
An authentication/authorization bypass in the djust Python live-view framework (versions prior to 1.0.7) lets unauthenticated remote attackers mount any view over the WebSocket/SSE transport even when that view is protected by standard Django guards such as LoginRequiredMixin, PermissionRequiredMixin, UserPassesTestMixin, @method_decorator(login_required, name="dispatch"), a custom dispatch() override, or the djust admin extension's staff gate. Because djust authorizes WebSocket mounts through its own check_view_auth helper instead of Django's View.dispatch() chain, those HTTP-only guards are enforced on the initial GET but silently skipped where all events and application state actually flow, so an anonymous or under-privileged client can invoke handlers - including admin list, create, change, and delete operations. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitable only when a djust live view (djust < 1.0.7) is protected using HTTP-only Django authorization - LoginRequiredMixin, PermissionRequiredMixin, UserPassesTestMixin, @method_decorator(login_required, name="dispatch"), a custom overridden dispatch() guard, or the djust admin extension's staff gate applied in the HTTP as_view wrapper. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine high-priority authorization/authentication bypass. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade to djust 1.0.7 or later (release: https://github.com/djust-org/djust/releases/tag/v1.0.7) - in that version check_view_auth honors the Django AccessMixin family on every transport, a new S004 system check aborts startup when it detects auth patterns the runtime cannot safely replay (decorator-based or overridden dispatch() forms), and the admin base mixin declares login_required = True with an active-staff check_permissions gate. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all applications using djust versions prior to 1.0.7, identify externally reachable WebSocket/SSE endpoints, and if immediate upgrade is impossible, block or restrict those endpoints at the reverse proxy or WAF and require network-level authentication; enable verbose logging for djust mounts and Django admin CRUD operations over WebSocket/SSE, and alert on unauthenticated mount attempts. …
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External POC / Exploit Code
Leaving vuln.today