---
id: CVE-2026-55442
title: >-
  Goobi viewer: cleanUpQuery double-brace bypass allows arbitrary Solr
  local-param injection
summary: >-
  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 qu…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-20
  - CWE-116
vendor: intranda
product: goobi-viewer-core
affected:
  - 'goobi-viewer-core >= 23.03, < 26.05'
published: '2026-10-23'
updated: '2026-10-23'
sourceUpdated: '2026-10-23T14:14:26.455Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-55442'
references:
  - url: >-
      https://github.com/intranda/goobi-viewer-core/security/advisories/GHSA-2r24-qxpf-cj65
    label: >-
      https://github.com/intranda/goobi-viewer-core/security/advisories/GHSA-2r24-qxpf-cj65
  - url: >-
      https://github.com/intranda/goobi-viewer-core/commit/330da2f8255a9ed2200ba46b98bb9b6a88748a4e
    label: >-
      https://github.com/intranda/goobi-viewer-core/commit/330da2f8255a9ed2200ba46b98bb9b6a88748a4e
  - url: >-
      https://github.com/intranda/goobi-viewer-core/commit/5a59ffa5d76169a4ad3cc396023ad4a4eca217da
    label: >-
      https://github.com/intranda/goobi-viewer-core/commit/5a59ffa5d76169a4ad3cc396023ad4a4eca217da
  - url: 'https://github.com/intranda/goobi-viewer-core/releases/tag/v26.05'
    label: 'https://github.com/intranda/goobi-viewer-core/releases/tag/v26.05'
tags:
  - cve.org
ingestedAt: '2026-10-23T14:28:08.694Z'
---

## Overview

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.

## Affected

- `goobi-viewer-core >= 23.03, < 26.05`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.