Token Authentication Flaw in Goobi Viewer by Intranda
CVE-2026-55459

7.4HIGH

Key Information:

Vendor

Intranda

Status
Goobi-viewer-core
Vendor
CVE Published:
23 October 2026

What is CVE-2026-55459?

The Goobi Viewer, a web application designed to display digitized materials, is susceptible to a token authentication issue. This vulnerability arises from the AuthenticationEndpoint.verifyOpenIdToken not enforcing the 'aud' claim during cryptographic validation. Instead, it performs a manual check that fails to account for multi-relying party (RP) Identity Providers (IdP), allowing attackers to authenticate as legitimate users using tokens meant for different relying parties. This flaw has been addressed in version 26.05 of the Goobi Viewer.

Affected Version(s)

goobi-viewer-core >= 25.01, < 26.05

References

https://github.com/intranda/goobi-viewer-core/security/ad...
x_refsource_CONFIRM
https://github.com/intranda/goobi-viewer-core/commit/73e2...
x_refsource_MISC
https://github.com/intranda/goobi-viewer-core/releases/ta...
x_refsource_MISC

CVSS V3.1

Score:
7.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.