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TI-2026-44123 Aliases CVE-2026-61595GHSA-3492-cvg7-9mr2

djust: Multi-tenant isolation fails open on the WebSocket/SSE path, disclosing other tenants' data

Priority LOW 34CWE-636Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-862.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00385 32nd percentileScored 2026-11-07
Fix Fixed djust (djust-org): 1.0.7djust (PyPI): 1.0.7

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
djust-orgdjustbefore 1.0.71.0.7Patch availableCNA
—djust (PyPI)before 1.0.71.0.7Patch availableGHSA-3492-cvg7-9mr2
  • djust Vendordjust-org Affected before 1.0.7 Fixed in 1.0.7 Patch available CNA
  • djust (PyPI) Vendor— Affected before 1.0.7 Fixed in 1.0.7 Patch available GHSA-3492-cvg7-9mr2

Remediation

  • Fix · CNA djust (djust-org) Fixed in 1.0.7
  • Fix · GHSA-3492-cvg7-9mr2 djust (PyPI) Fixed in 1.0.7 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-61595
  2. 2026-10-03 Alias added: GHSA-3492-cvg7-9mr2

References

Other 3

  • TI-2026-40112 Improper authorization in djust-org djust CVSS 3.1HIGH 8.2
  • TI-2026-78534 Arbitrary file read in djust find_handlers_for_template MCP tool CVSS 3.1LOW 3.3
  • TI-2026-44127 djust has an unauthenticated arbitrary module import via the WebSocket/SSE view-mount path CVSS 4.0HIGH 8.8
  • TI-2026-44122 djust has an authorization bypass on the WebSocket/SSE mount path CVSS 3.1CRITICAL 9.1
  • TI-2026-44121 Cross-site request forgery in djust-org djust CVSS 3.1HIGH 8.1
  • TI-2026-44119 djust: Unsigned client state snapshot is restored as trusted view state (privilege escalation / state injection) CVSS 3.1HIGH 8.1
See all 13 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences