CVE-2026-55444
MEDIUM 5.3The 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.
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.3%chance of exploitation in 30 days · 17th percentile
Impact if exploited
5.3CVSS 3.1 · MEDIUM
- ConfidentialityLow
- IntegrityNone
- AvailabilityNone
What an attacker needs
- ✓Access: Reachable over the network — no local access needed
- ✓Privileges: No account or privileges required
- ✓User interaction: No user interaction needed
- ✓Complexity: No special conditions — reliably repeatable
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept
No public PoC is currently catalogued.
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Data snapshot:
Weakness (CWE)
- CWE-20: : Improper Input Validation
- CWE-89: : Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
- CWE-943: : Improper Neutralization of Special Elements in Data Query Logic
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
References and research data (JSON)
All CVSS metrics
- MEDIUM 5.3 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - MEDIUM 5.3 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
References
Advisories
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-109061 EUVD · EUVD-2026-109061
Technical & other
- https://github.com/intranda/goobi-viewer-core/security/advisories/GHSA-763m-wjm9-6873 CVE record · GitHub_M · Updated 2026-10-23T14:16:16.350Z
NVD · CVE-2026-55444 · Updated 2026-10-23T16:28:32.357 - https://github.com/intranda/goobi-viewer-core/commit/e8d987f8478b86559ef3ea236be0d86e08948f6b CVE record · GitHub_M · Updated 2026-10-23T14:16:16.350Z
NVD · CVE-2026-55444 · Updated 2026-10-23T16:28:32.357 - https://github.com/intranda/goobi-viewer-core/commit/fcdae14b06e99f3320a02d45a6be7fc6e5c69a6e CVE record · GitHub_M · Updated 2026-10-23T14:16:16.350Z
NVD · CVE-2026-55444 · Updated 2026-10-23T16:28:32.357 - https://github.com/intranda/goobi-viewer-core/releases/tag/v26.05 CVE record · GitHub_M · Updated 2026-10-23T14:16:16.350Z
NVD · CVE-2026-55444 · Updated 2026-10-23T16:28:32.357