CVE-2026-61589

djust provides Phoenix LiveView-style reactive server-side rendering for Django with Rust-powered performance. Prior to version 1.0.7, the WebSocket `handle_mount` and `ViewRuntime._build_request` rebuild an `HttpRequest` via `RequestFactory().get(...)` with no `HTTP_HOST`, so `request.get_host()` defaulted to `"testserver"` on the live path. Host/subdomain/domain `TenantResolver`s then misresolved the tenant — `None` on the live path while the HTTP path resolved correctly. With `STRICT_MODE=False` the tenant-scoped managers returned unscoped rows (cross-tenant disclosure); with the default they returned an empty queryset (broken tenancy). This is fixed in djust 1.0.7. The handshake Host is extracted from the ASGI scope, validated against `ALLOWED_HOSTS` (the same logic as the CSWSH Origin gate, parsed with Django's `split_domain_port` so malformed Hosts are rejected at the boundary), and propagated — with the TLS scheme — into the reconstructed request, so live-path tenant resolution matches HTTP exactly. There is no known workaround on the live path short of upgrading. Users are most exposed when combined with `STRICT_MODE=False`.

CVSS v3 6.3 MEDIUM

6.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/djust-org/djust/releases/tag/v1.0.7
https://github.com/djust-org/djust/security/advisories/GHSA-v9rj-xjfv-xj9r

Configurations

No configuration.

History

16 Sep 2026, 23:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-16 23:16

Updated : 2026-09-30 17:51

NVD link : CVE-2026-61589

Mitre link : CVE-2026-61589

CVE.ORG link : CVE-2026-61589

JSON object : View

Products Affected

No product.

CWE

CWE-348

Use of Less Trusted Source

CWE-639

Authorization Bypass Through User-Controlled Key

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