CVE-2026-61595 Details
Description
djust provides Phoenix LiveView-style reactive server-side rendering for Django with Rust-powered performance. Prior to version 1.0.7, `djust.tenants` isolation was enforced only on the HTTP path. The current tenant was stored in `threading.local()` and set exclusively by the HTTP-only `TenantMiddleware`, so on the live (WebSocket/SSE) path `get_current_tenant()` was always `None` during mount and every event handler — and the tenant-aware `QuerySet` manager failed OPEN (returned the unfiltered queryset, ignoring `STRICT_MODE`), disclosing every tenant's rows to whoever held the socket. `threading.local` was additionally shared across connections on the `sync_to_async` executor thread. This issue is fixed in djust 1.0.7. Tenant storage moved to a `contextvars.ContextVar` (per async task); the resolved tenant is bound around WS/SSE mount and every dispatch; both managers scope the base queryset once and fail CLOSED (`.none()` under the default `STRICT_MODE`); and system check S006 warns when `STRICT_MODE=False`. No known workarounds are available on the live path.
A vulnerability in Djust prior to version 1.0.7 allows for improper tenant isolation on the WebSocket and Server-Sent Events (SSE) paths, leading to unauthorized disclosure of data between tenants. The issue arises because tenant information was only managed through HTTP requests, leaving WebSocket connections unprotected. As a result, the tenant-aware QuerySet manager exposed all rows from every tenant to users with an active WebSocket connection.
Users can upgrade to Djust version 1.0.7 or later, where this vulnerability has been fixed. Instructions for upgrading can be found in the Djust repository on GitHub.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 16, 2026CISA-ADP
Assessed Sep 16, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/djust-org/djust/releases/tag/v1.0.7 | [email protected] | Release NotesVendor |
| https://github.com/djust-org/djust/security/advisories/GHSA-3492-cvg7-9mr2 | [email protected] | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-636 | Not Failing Securely ('Failing Open') | [email protected] |
| CWE-862 | Missing Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| djust | < 1.0.7 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 16, 2026 | CVE Modified | CISA-ADP |
| Sep 16, 2026 | New CVE Received | [email protected] |