Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/intranda/goobi-viewer-core/commit/8714ca81065d2c2c6e614a1ee67
- https://github.com/intranda/goobi-viewer-core/releases/tag/v26.05
- https://github.com/intranda/goobi-viewer-core/security/advisories/GHSA-h5m9-fpvw
FAQ
What is CVE-2026-55463?
CVE-2026-55463 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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-...
How severe is CVE-2026-55463?
CVE-2026-55463 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-55463?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.