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TI-2026-79933 Aliases CVE-2026-55457

Authorization bypass in Goobi viewer via empty default API token

Priority LOW 34CWE-1392Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-287.

Summary

Goobi viewer (intranda goobi-viewer-core) before 26.05 accepts an empty token for protected web API endpoints when webapi.authorization.token is not configured. The authorization filter compares the supplied token against this empty default without checking that a token is configured (CWE-287). An unauthenticated remote attacker can reach any endpoint protected by the authorization binding without valid credentials.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Description from the CNA

The Goobi viewer is a web application that allows digitised material to be displayed in a web browser. Prior to version 26.05, Configuration.getWebApiToken returns the empty string when webapi.authorization.token is not configured. AuthorizationFilter compares the supplied token against this default without first checking that the configured token is non-empty. A request to any @AuthorizationBinding-protected endpoint with an empty ?token= value is therefore accepted. This issue has been patched in version 26.05.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00274 19th percentileScored 2026-11-07
Fix Fixed goobi-viewer-core (intranda): 26.05

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
intrandagoobi-viewer-corebefore 26.0526.05Patch availableCNA
  • goobi-viewer-core Vendorintranda Affected before 26.05 Fixed in 26.05 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:intranda:goobi_viewer_core:*:*:*:*:*:*:*:*——intranda
  • cpe:2.3:a:intranda:goobi_viewer_core:*:*:*:*:*:*:*:* Versions — — ·intranda

Remediation

Upgrade Goobi viewer to version 26.05, which patches the issue.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

  • Fix · CNA goobi-viewer-core (intranda) Fixed in 26.05

Timeline

  1. 2026-10-23 Threatist record created from CVE-2026-55457
  2. 2026-10-24 Priority changed: MEDIUM → LOW
  3. 2026-10-30 CISA SSVC decision points changed

References

Other 3

  • TI-2026-79924 Path traversal in Goobi viewer lets malicious servers write files CVSS 3.1CRITICAL 9.8
  • TI-2026-79923 Unauthenticated SSRF and local file inclusion in Goobi viewer CVSS 3.1CRITICAL 9.8
  • TI-2026-32930 Goobi viewer: Unauthenticated Solr Streaming Expression Proxy CVSS 3.1CRITICAL 9.8
  • TI-2020-11897 Path traversal in Goobi viewer Core CVSS 3.1CRITICAL 9.6
  • TI-2026-79937 Reflected XSS in Goobi viewer IIIF Auth authorization endpoints CVSS 3.1CRITICAL 9.3
  • TI-2026-79920 Predictable password reset token in Goobi viewer CVSS 3.1MEDIUM 6.5
See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences