Goobi viewer: Solr query injection via the legacy RSS servlet q and filterQuery parameters

published 2026-10-23 17 d ago modified 2026-10-29 10 d ago also EUVD-2026-109061

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 16%
public exploits: 0; none known

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.

Patch / fix

fixed in 1 links 3

intranda goobi_viewer_core 26.05

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 10 d ago (2026-10-29)

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

intranda goobi-viewer-core

Classification

Weakness

CWE-20 Improper Input Validation
CWE-89 Improper Neutralization of Special Elements used in an SQL Command
CWE-943 Improper Neutralization of Special Elements in Data Query Logic

References

Sources

CVE List CVE-2026-55444
NVD CVE-2026-55444

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary