{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "4.11.0"
                  },
                  {
                    "fixed": "26.05"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              },
              {
                "range": [
                  {
                    "fixed": "8714ca81065d2c2c6e614a1ee6753de65cbe3412"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              },
              {
                "original_tag": "v26.05",
                "range": [
                  {
                    "fixed": "7e5e9de18c572c7b96f80efe01254bf08dc4cdb4"
                  }
                ],
                "source": "REFERENCES_TAG"
              }
            ]
          },
          "events": [
            {
              "introduced": "e1c5fc58feab3d5035140f5743a573d91bd6683f"
            },
            {
              "fixed": "7e5e9de18c572c7b96f80efe01254bf08dc4cdb4"
            },
            {
              "fixed": "8714ca81065d2c2c6e614a1ee6753de65cbe3412"
            }
          ],
          "repo": "https://github.com/intranda/goobi-viewer-core",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-h5m9-fpvw-qr36"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-1385",
      "CWE-306",
      "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55463.json"
  },
  "details": "The Goobi viewer is a web application that allows digitised material to be displayed in a web browser. From version 4.11.0 to before version 26.05, several Jakarta WebSocket endpoints in goobi-viewer-core (DownloadTaskEndpoint, CampaignEndpoint, AutocompleteEndpoint, UserEndpoint) accept connections without verifying that the associated HttpSession belongs to a logged-in user, and none validate the Origin header against an allowlist. An unauthenticated attacker can therefore connect to these endpoints; through CampaignEndpoint this allows polluting the in-process crowdsourcing page-lock map and broadcasting forged lock messages, disrupting reviewers' work. This issue has been patched in version 26.05.",
  "id": "CVE-2026-55463",
  "modified": "2026-10-31T02:30:25.058572688Z",
  "published": "2026-10-23T14:17:06.825Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/intranda/goobi-viewer-core/releases/tag/v26.05"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55463.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/intranda/goobi-viewer-core/security/advisories/GHSA-h5m9-fpvw-qr36"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55463"
    },
    {
      "type": "FIX",
      "url": "https://github.com/intranda/goobi-viewer-core/commit/8714ca81065d2c2c6e614a1ee6753de65cbe3412"
    }
  ],
  "schema_version": "1.9.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Goobi viewer: WebSocket endpoints lack server-side authentication and origin validation"
}