{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.0.4"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1ae8aa9246b80477de7ddc4d90319a3b267bef04"
            },
            {
              "fixed": "c480c4dc931709f9d2c6c0bf643d3f9529016dcc"
            }
          ],
          "repo": "https://github.com/djust-org/djust",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-xx4j-w367-7247"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-285",
      "CWE-306"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55571.json"
  },
  "details": "djust provides Phoenix LiveView-style reactive server-side rendering for Django with Rust-powered performance. Prior to 1.0.4, LiveViewConsumer.handle_mount sends a `{\"type\":\"navigate\",\"to\":...}` frame when login_required, permission_required, or a redirecting on_mount hook denies a LiveView mount, but returns without closing the WebSocket or clearing self.view_instance. A browser follows the redirect, but a raw WebSocket client can ignore it and retain the mounted socket. Because LiveViewConsumer.handle_event does not recheck authentication or authorization, the client can send `{\"type\":\"event\",...}` frames that invoke @event_handler methods without an authenticated session, including through handle_live_redirect_mount, enabling unauthorized sensitive reads or mutations. This issue is fixed in version 1.0.4.",
  "id": "CVE-2026-55571",
  "modified": "2026-09-11T03:30:14.556035416Z",
  "published": "2026-08-25T16:05:49.069Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/djust-org/djust/releases/tag/v1.0.4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55571.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/djust-org/djust/security/advisories/GHSA-xx4j-w367-7247"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55571"
    },
    {
      "type": "FIX",
      "url": "https://github.com/djust-org/djust/commit/1ae8aa9246b80477de7ddc4d90319a3b267bef04"
    },
    {
      "type": "FIX",
      "url": "https://github.com/djust-org/djust/pull/1780"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "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"
}