{"id":"CVE-2026-55463","title":"Goobi viewer: WebSocket endpoints lack server-side authentication and origin validation","summary":"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, CampaignE…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","cvssSource":"cna","cwe":["CWE-306","CWE-862","CWE-1385"],"vendor":"intranda","product":"goobi-viewer-core","affected":["goobi-viewer-core >= 4.11.0, < 26.05"],"published":"2026-10-23","updated":"2026-10-23","sourceUpdated":"2026-10-23T14:17:06.825Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-55463","references":[{"url":"https://github.com/intranda/goobi-viewer-core/security/advisories/GHSA-h5m9-fpvw-qr36","label":"https://github.com/intranda/goobi-viewer-core/security/advisories/GHSA-h5m9-fpvw-qr36"},{"url":"https://github.com/intranda/goobi-viewer-core/commit/8714ca81065d2c2c6e614a1ee6753de65cbe3412","label":"https://github.com/intranda/goobi-viewer-core/commit/8714ca81065d2c2c6e614a1ee6753de65cbe3412"},{"url":"https://github.com/intranda/goobi-viewer-core/releases/tag/v26.05","label":"https://github.com/intranda/goobi-viewer-core/releases/tag/v26.05"}],"tags":["cve.org"],"ingestedAt":"2026-10-23T14:28:08.692Z","slug":"CVE-2026-55463","body":"## Overview\n\nThe 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.\n\n## Affected\n\n- `goobi-viewer-core >= 4.11.0, < 26.05`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}