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CVE-2026-55444

Full vulnerability record from the local CVENow database.

Description

The Goobi viewer is a web application that allows digitised material to be displayed in a web browser. Prior to version 26.05, the legacy RSS servlet (RssResolver, GET /rss/) accepts the q and filterQuery parameters and concatenates them into Solr queries without validation. The servlet predates the REST API layer and lacks the input validation present in GET /api/v1/records/rss. q forms the main query body (wrapped only in literal parentheses); filterQuery is passed directly as a Solr fq. An unauthenticated attacker can inject Solr boolean operators to break out of the wrapping and render the trailing access-condition filter-query suffix optional, so that access-restricted records are included in the generated RSS feed. The q and filterQuery parameters are the same underlying vulnerability in the same servlet; q (the main query body) has the broader scope. This issue has been patched in version 26.05.

Severity
MEDIUM
CVSS score
5.3 (v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-10-23 15:17:32.910000
Last modified
2026-10-29 18:17:33.320000
View original CVE JSON
{
  "id": "CVE-2026-55444",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-23T15:17:32.910",
  "lastModified": "2026-10-29T18:17:33.320",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Goobi viewer is a web application that allows digitised material to be displayed in a web browser. Prior to version 26.05, the legacy RSS servlet (RssResolver, GET /rss/) accepts the q and filterQuery parameters and concatenates them into Solr queries without validation. The servlet predates the REST API layer and lacks the input validation present in GET /api/v1/records/rss. q forms the main query body (wrapped only in literal parentheses); filterQuery is passed directly as a Solr fq. An unauthenticated attacker can inject Solr boolean operators to break out of the wrapping and render the trailing access-condition filter-query suffix optional, so that access-restricted records are included in the generated RSS feed. The q and filterQuery parameters are the same underlying vulnerability in the same servlet; q (the main query body) has the broader scope. This issue has been patched in version 26.05."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "intranda",
          "product": "goobi-viewer-core",
          "versions": [
            {
              "version": "< 26.05",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-29T17:53:46.558326Z",
          "id": "CVE-2026-55444",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        },
        {
          "lang": "en",
          "value": "CWE-89"
        },
        {
          "lang": "en",
          "value": "CWE-943"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/intranda/goobi-viewer-core/commit/e8d987f8478b86559ef3ea236be0d86e08948f6b",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/intranda/goobi-viewer-core/commit/fcdae14b06e99f3320a02d45a6be7fc6e5c69a6e",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/intranda/goobi-viewer-core/releases/tag/v26.05",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/intranda/goobi-viewer-core/security/advisories/GHSA-763m-wjm9-6873",
      "source": "[email protected]"
    }
  ]
}