Medium 6.5Published Oct 23, 2026

CVE-2026-55463Goobi viewer: WebSocket endpoints lack server-side authentication and origin validation

Updated under an hour ago (Oct 25, 2026, 9:10 PM ET)

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It affects intranda goobi-viewer-core. Add what you run to find out whether that includes you.

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Every CVE for intranda goobi-viewer-core

Exploited in the last 30 days

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: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness (CWE): CWE-306, CWE-862, CWE-1385
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 23, 2026
First seen by InfoSec Signals: Oct 23, 2026

Affected products

Affected products

intranda goobi-viewer-core intranda:goobi_viewer_core (from the name)	from 4.11.0, < 26.05	CNA record

References

https://github.com/intranda/goobi-viewer-core/security/advisories/GHSA-h5m9-fpvw-qr36x-refsource-confirm
https://github.com/intranda/goobi-viewer-core/commit/8714ca81065d2c2c6e614a1ee6753de65cbe3412x-refsource-misc
https://github.com/intranda/goobi-viewer-core/releases/tag/v26.05x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.