CVE-2026-46651: The Goobi viewer is a web application that allows digitised material to be displayed in a web browser

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CRITICAL 9.8REMOTE

CVE-2026-46651 is a critical-severity flaw (CVSS 9.8) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Goobi viewer is a web application that allows digitised material to be displayed in a web browser. From version 24.03 to before version 26.05, the DownloadTaskEndpoint WebSocket endpoint (/tasks/download/monitor.socket) in goobi-viewer-core accepts download requests from unauthenticated users. This issue has been patched in version 26.05.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	n/a
CISA exploited list	No
Weakness	CWE-306, CWE-552, CWE-918
Published	2026-10-23
Last modified	2026-10-23

Publisher (CNA): GitHub, Inc.

Timeline

2026-10-23 15:17 UTCPublished CVE record published
2026-10-23 16:28 UTCUpdated Record last modified

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

References

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