CVE-2026-55444 Goobi viewer: Solr query injection via the legacy RSS servlet q and filterQuery parameters
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-55444?
CVE-2026-55444 is a medium-severity vulnerability in intranda goobi-viewer-core, published on 23 Oct 2026.
Official 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.
Which versions are affected by CVE-2026-55444?
How do I fix CVE-2026-55444?
No fix has been published for CVE-2026-55444 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-55444 being exploited?
There is no known exploitation of CVE-2026-55444 in the wild and no public exploit code.
Sources
Also known as GHSA-763m-wjm9-6873.