Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/intranda/goobi-viewer-core/commit/e8d987f8478b86559ef3ea236be
- https://github.com/intranda/goobi-viewer-core/commit/fcdae14b06e99f3320a02d45a6b
- https://github.com/intranda/goobi-viewer-core/releases/tag/v26.05
- https://github.com/intranda/goobi-viewer-core/security/advisories/GHSA-763m-wjm9
FAQ
What is CVE-2026-55444?
CVE-2026-55444 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 filterQ...
How severe is CVE-2026-55444?
CVE-2026-55444 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-55444?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.