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TI-2026-79931 Aliases CVE-2026-55442

Goobi viewer sanitizer bypass allows Solr local-parameter injection

Priority LOW 24CWE-116Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Goobi viewer (intranda goobi-viewer-core) from 23.03 before 26.05 is affected. The SolrTools.cleanUpQuery sanitizer strips Solr local-parameter syntax from user input, but its regex can be bypassed by wrapping the local parameter in a second pair of curly braces, so a valid Solr local parameter still reaches Solr (CWE-20). A remote attacker without authentication can send such a query to any endpoint that routes user input through the sanitizer.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

The Goobi viewer is a web application that allows digitised material to be displayed in a web browser. From version 23.03 to before version 26.05, SolrTools.cleanUpQuery() strips Solr local-parameter syntax ({!...}) from user-supplied query strings before they reach Solr. Its regex can be bypassed by wrapping the local parameter in a second pair of curly braces ({{!...}}): the outer braces are stripped, the inner {!...} survives intact, and a valid Solr local parameter is forwarded. The flaw is in the shared sanitizer, so it affects any endpoint that routes user input through cleanUpQuery. The double-brace bypass applies from v23.10 (the greedy \{(.+)\} regex); a related bare-!join rewrap path is present. This issue has been patched in version 26.05.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00262 18th 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
Partial

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-core23.03 to before 26.0526.05Patch availableCNA
  • goobi-viewer-core Vendorintranda Affected 23.03 to 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 (intranda goobi-viewer-core) to version 26.05, which fixes this issue.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

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

Timeline

  1. 2026-10-23 Threatist record created from CVE-2026-55442
  2. 2026-10-29 CISA SSVC decision points changed

References

Other 4

  • 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