What is CVE-2026-55463?

CVE-2026-55463 is a medium-severity vulnerability in Intranda Goobi-Viewer-Core, classified under Missing Authentication for Critical Function. CVSS score: 6.5/10. Published 2026-10-23.

How severe is CVE-2026-55463?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Intranda Goobi-Viewer-Core

CVE-2026-55463

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.

Vulnerability class: Broken Authentication

Published 2026-10-23 · last modified 2026-10-23.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Intranda Goobi-Viewer-Core — versions >= 4.11.0, < 26.05

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-55463?: CVE-2026-55463 is a medium-severity vulnerability in Intranda Goobi-Viewer-Core, classified under Missing Authentication for Critical Function. CVSS score: 6.5/10. Published 2026-10-23.
How severe is CVE-2026-55463?: Medium severity. CVSS v3 base score is 6.5 out of 10.