CVE-2026-55442 (GCVE-0-2026-55442)

Vulnerability from cvelistv5 – Published: 2026-10-23 14:14 – Updated: 2026-10-23 14:14
VLAI
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 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.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE
  • CWE-20 - Improper Input Validation
  • CWE-116 - Improper Encoding or Escaping of Output
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7760 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
intranda goobi-viewer-core Affected: >= 23.03, < 26.05
guessed Create a notification for this product.
Show details on NVD website
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              "version": "\u003e= 23.03, \u003c 26.05"
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          "value": "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."
        }
      ],
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        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
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          "name": "https://github.com/intranda/goobi-viewer-core/security/advisories/GHSA-2r24-qxpf-cj65",
          "tags": [
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          "url": "https://github.com/intranda/goobi-viewer-core/security/advisories/GHSA-2r24-qxpf-cj65"
        },
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          "url": "https://github.com/intranda/goobi-viewer-core/commit/330da2f8255a9ed2200ba46b98bb9b6a88748a4e"
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          "tags": [
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          "url": "https://github.com/intranda/goobi-viewer-core/commit/5a59ffa5d76169a4ad3cc396023ad4a4eca217da"
        },
        {
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          "url": "https://github.com/intranda/goobi-viewer-core/releases/tag/v26.05"
        }
      ],
      "source": {
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        "discovery": "UNKNOWN"
      },
      "title": "Goobi viewer: cleanUpQuery double-brace bypass allows arbitrary Solr local-param injection"
    }
  },
  "cveMetadata": {
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    "cveId": "CVE-2026-55442",
    "datePublished": "2026-10-23T14:14:26.455Z",
    "dateReserved": "2026-06-16T21:59:57.018Z",
    "dateUpdated": "2026-10-23T14:14:26.455Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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      "date": "2026-10-25",
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                  }
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        "descriptions": [
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            "lang": "en",
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          }
        ],
        "id": "CVE-2026-55442",
        "lastModified": "2026-10-23T16:28:32.357",
        "metrics": {
          "cvssMetricV31": [
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              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
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        "published": "2026-10-23T15:17:32.730",
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            "url": "https://github.com/intranda/goobi-viewer-core/commit/330da2f8255a9ed2200ba46b98bb9b6a88748a4e"
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        "vulnStatus": "Deferred",
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    }
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}



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