CVE-2026-55444

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.

• CWE-20
• CWE-89
• CWE-943

• https://github.com/intranda/goobi-viewer-core/commit/e8d987f8478b86559ef3ea236be0d86e08948f6b
• https://github.com/intranda/goobi-viewer-core/commit/fcdae14b06e99f3320a02d45a6be7fc6e5c69a6e
• https://github.com/intranda/goobi-viewer-core/releases/tag/v26.05
• https://github.com/intranda/goobi-viewer-core/security/advisories/GHSA-763m-wjm9-6873

Published

Oct 23, 2026

Last Modified

Oct 29, 2026

Status

Deferred

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