---
title: "CVE-2026-61594: djust has an authorization bypass on the WebSocket/SSE mount path"
url: https://erroneo.us/security/cve/CVE-2026-61594/
description: "CVE-2026-61594 (djust (PyPI)): djust provides Phoenix LiveView-style reactive server-side rendering for Django with Rust-powered performance. Prior to…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-09-16
date_modified: 2026-09-17
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-61594"
kev: false
cvss: 9.1
epss: 0.00485
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-61594: djust has an authorization bypass on the WebSocket/SSE mount path

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.5% , percentile 41: FIRST’s model estimates a 0.5% chance of exploitation activity in the next 30 days, higher than 41% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes djust (PyPI) < 1.0.7, fixed in 1.0.7 . Check your lockfile, including transitive dependencies.

## What it is

djust provides Phoenix LiveView-style reactive server-side rendering for Django with Rust-powered performance. Prior to version 1.0.7, the live (WebSocket) transport authorizes a mount via checkviewauth, not Django's View.dispatch() chain. As a result, standard Django authorization — LoginRequiredMixin, PermissionRequiredMixin, UserPassesTestMixin, @methoddecorator(loginrequired, name="dispatch"), and custom dispatch() guards — and the djust admin extension's staff gate (applied only in the HTTP asview 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. This is fixed in djust 1.0.7. checkviewauth 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 loginrequired = True + an active-staff checkpermissions gate. As a workaround, gate views using djust's loginrequired / permissionrequired / checkpermissions attributes (honored on all transports) rather than HTTP-only mixins/decorators.

## Affected packages

- PyPI `djust` < 1.0.7 → fixed: 1.0.7

## Affected products (CVE record)

- djust-org djust: < 1.0.7

## Severity

- GitHub_M CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`
- GitHub CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.48% probability of exploitation activity in the next 30 days; percentile 41.

## Sources

- [GitHub Advisory GHSA-xhhm-f6hp-2qwj](https://github.com/advisories/GHSA-xhhm-f6hp-2qwj)
- [CVE.org record CVE-2026-61594](https://www.cve.org/CVERecord?id=CVE-2026-61594)
- [NVD entry CVE-2026-61594](https://nvd.nist.gov/vuln/detail/CVE-2026-61594)
- [github.com](https://github.com/djust-org/djust/security/advisories/GHSA-xhhm-f6hp-2qwj)
- [github.com](https://github.com/djust-org/djust/releases/tag/v1.0.7)

---
Source page: https://erroneo.us/security/cve/CVE-2026-61594/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt