Medium 5.3Published Oct 23, 2026

CVE-2026-55444Goobi viewer: Solr query injection via the legacy RSS servlet q and filterQuery parameters

Updated under an hour ago (Oct 27, 2026, 11:30 PM ET)

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Exploited in the last 30 days

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: 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-20, CWE-89, CWE-943
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 23, 2026
First seen by InfoSec Signals: Oct 23, 2026

Affected products

Affected products

intranda goobi-viewer-core intranda:goobi_viewer_core (from the name)	before 26.05	CNA record

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.