{"id":"CVE-2026-55442","state":"PUBLISHED","title":"Goobi viewer: cleanUpQuery double-brace bypass allows arbitrary Solr local-param injection","description":"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.","publishedAt":"2026-10-23T14:14:26.455Z","updatedAt":"2026-10-29T13:56:19.871Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["intranda goobi-viewer-core"],"affected":[{"vendor":"intranda","product":"goobi-viewer-core","versions":[{"version":">= 23.03, < 26.05","status":"affected"}]}],"references":["https://github.com/intranda/goobi-viewer-core/security/advisories/GHSA-2r24-qxpf-cj65","https://github.com/intranda/goobi-viewer-core/commit/330da2f8255a9ed2200ba46b98bb9b6a88748a4e","https://github.com/intranda/goobi-viewer-core/commit/5a59ffa5d76169a4ad3cc396023ad4a4eca217da","https://github.com/intranda/goobi-viewer-core/releases/tag/v26.05"],"weaknesses":["CWE-20","CWE-116"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/55xxx/CVE-2026-55442.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-55442","state":"PUBLISHED","datePublished":"2026-10-23T14:14:26.455Z","dateUpdated":"2026-10-29T13:56:19.871Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-16T21:59:57.018Z"},"containers":{"cna":{"title":"Goobi viewer: cleanUpQuery double-brace bypass allows arbitrary Solr local-param injection","descriptions":[{"lang":"en","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."}],"affected":[{"vendor":"intranda","product":"goobi-viewer-core","versions":[{"version":">= 23.03, < 26.05","status":"affected"}]}],"references":[{"url":"https://github.com/intranda/goobi-viewer-core/security/advisories/GHSA-2r24-qxpf-cj65","name":"https://github.com/intranda/goobi-viewer-core/security/advisories/GHSA-2r24-qxpf-cj65","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/intranda/goobi-viewer-core/commit/330da2f8255a9ed2200ba46b98bb9b6a88748a4e","name":"https://github.com/intranda/goobi-viewer-core/commit/330da2f8255a9ed2200ba46b98bb9b6a88748a4e","tags":["x_refsource_MISC"]},{"url":"https://github.com/intranda/goobi-viewer-core/commit/5a59ffa5d76169a4ad3cc396023ad4a4eca217da","name":"https://github.com/intranda/goobi-viewer-core/commit/5a59ffa5d76169a4ad3cc396023ad4a4eca217da","tags":["x_refsource_MISC"]},{"url":"https://github.com/intranda/goobi-viewer-core/releases/tag/v26.05","name":"https://github.com/intranda/goobi-viewer-core/releases/tag/v26.05","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","lang":"en","description":"CWE-20: Improper Input Validation","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-116","lang":"en","description":"CWE-116: Improper Encoding or Escaping of Output","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-23T14:14:26.455Z"},"source":{"advisory":"GHSA-2r24-qxpf-cj65","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-29T13:56:01.328914Z","id":"CVE-2026-55442","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-29T13:56:19.871Z"}}]}}}