CVE-2026-55459 Goobi Viewer - Authentication Bypass

Goobi Viewer 25.01 to < 26.05 contains a broken authentication caused by improper audience claim validation in JWT verification, letting attackers authenticate as other users in multi-RP IdP setups, exploit requires crafted token.

CVSS base score 7.4 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.24% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Broken Authentication
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Published
23 October 2026
Updated
25 October 2026
Weakness
CWE-287

Vendor fix

Upgrade to version 26.05 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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