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High

djust has broken object-level access control (IDOR)

  • Disclosed: 16.09.2026
  • Updated: 11.10.2026 15:18

Impact

djust's per-object authorization (get_object + has_object_permission, ADR-017) was enforced on the WebSocket mount and event paths but not on three other render entry points: (a) the initial HTTP GET render, (b) SPA url_change navigation, and (c) {% live_render %} embedded child views. An authenticated user could therefore view (and on some paths act on) an object they are not authorized for by loading the page directly, navigating to it via SPA url-change, or composing it as an embedded child — a classic IDOR / broken object-level access control on object-scoped views.

Patches

Fixed in djust 1.0.7. All render entry points now route through a shared enforce_object_permission chokepoint: HTTP GET returns 403, url_change emits a permission_denied frame and skips the render, and {% live_render %} (eager + lazy) refuses the embed. Views without a custom get_object are unaffected (no-op).

Workarounds

No reliable workaround short of upgrading. Do not expose object-scoped views through the HTTP-GET / url_change / live_render paths until patched.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Python (PyPI) djust < 1.0.7 1.0.7

References

CVSS score 7.1/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Weakness (CWE)
CWE-639, CWE-862
Platform
Python (PyPI)
Package
djust
Disclosed
16.09.2026
Updated
11.10.2026 15:18

Sources and licenses

OSV / GitHub Advisory Database - PYSEC-2026-4041 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - GHSA-c7c5-5j6r-q957 - CC BY 4.0

Vulnerability history: djust

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (15) in the archive
Total entries
15
First → latest
08.2026 09.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 1
  • High 11
  • Medium 3

Disclosures per year

Severity:
  1. djust: A template binding inherits a context safety grant it never earned (XSS)
    High ghsa-xjw9-38cr-6372 < 1.1.2 1.1.2
  2. djust: Six template-layer defects emit attacker-controlled markup unescaped (XSS)
    High ghsa-9395-2g46-rj3f < 1.1.1 1.1.1
  3. djust has an unauthenticated arbitrary module import via the WebSocket/SSE view-mount path
    High CVE-2026-61599 < 1.0.7 1.0.7
  4. djust has broken object-level access control (IDOR) this entry
    High · 7.1 CVE-2026-61596 < 1.0.7 1.0.7
  5. djust has an authorization bypass on the WebSocket/SSE mount path
    Critical · 9.1 CVE-2026-61594 < 1.0.7 1.0.7
  6. djust: Unsigned client state snapshot is restored as trusted view state (privilege escalation / state injection)
    High · 8.1 CVE-2026-61591 < 1.0.7 1.0.7
  7. djust: SSE sessions are not bound to the authenticated user; the client-chosen session_id is the sole authorization capability (session hijack)
    High · 7.4 CVE-2026-61592 < 1.0.7 1.0.7
  8. djust has Cross-Site Request Forgery on the Server-Sent-Events transport: a cross-origin page can drive a victim-authenticated SSE session
    High · 8.1 CVE-2026-61593 < 1.0.7 1.0.7
  9. djust: Multi-tenant isolation fails open on the WebSocket/SSE path, disclosing other tenants' data
    High · 7.7 CVE-2026-61595 < 1.0.7 1.0.7
  10. djust: Client mass-assignment of arbitrary view attributes via the default dj-model update_model handler
    High CVE-2026-61598 < 1.0.7 1.0.7
  11. djust's observability endpoints are network-exposed: the localhost gate is an opt-in middleware the docs omit, and the views enforce only DEBUG
    High · 7.4 CVE-2026-61590 < 1.0.7 1.0.7
  12. djust authentication bypass: a login_required / on_mount LiveView mount redirect does not close the WebSocket, allowing an unauthenticated client to dispatch event-handler calls
    High · 8.2 CVE-2026-55571 < 1.0.4 1.0.4

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