{"id":"CVE-2026-55463","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-55463","generatedAt":"2026-10-28T01:45:20.207Z","title":"The Goobi viewer is a web application that allows digitised material to be displayed in a web browser.","description":"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.","published":"2026-10-23T15:17:33.000Z","lastModified":"2026-10-23T16:28:32.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"},"cwe":["CWE-306","CWE-862","CWE-1385"],"affected":[],"epss":{"score":0.00136,"percentile":0.03011,"date":"2026-10-26","history":[{"date":"2026-10-24","score":0.00195,"percentile":0.08663}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.14%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-23T15:17:33.000Z","detail":{"score":"6.5","severity":"MEDIUM","publishedAt":"2026-10-23T15:17:33.360Z"},"summary":"New CVE, medium severity (CVSS 6.5)."}],"references":[{"url":"https://github.com/intranda/goobi-viewer-core/commit/8714ca81065d2c2c6e614a1ee6753de65cbe3412","source":"security-advisories@github.com"},{"url":"https://github.com/intranda/goobi-viewer-core/releases/tag/v26.05","source":"security-advisories@github.com"},{"url":"https://github.com/intranda/goobi-viewer-core/security/advisories/GHSA-h5m9-fpvw-qr36","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-55463","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}