What is CVE-2026-55442?

CVE-2026-55442 is a medium-severity vulnerability in Intranda Goobi-Viewer-Core, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2026-10-23.

How severe is CVE-2026-55442?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Improper input validation in Intranda Goobi-Viewer-Core

CVE-2026-55442

The Goobi viewer is a web application that allows digitised material to be displayed in a web browser. From version 23.03 to before version 26.05, SolrTools.cleanUpQuery() strips Solr local-parameter syntax ({!...}) from user-supplied query strings before they reach Solr. Its regex can be bypassed by wrapping the local parameter in a second pair of curly braces ({{!...}}): the outer braces are stripped, the inner {!...} survives intact, and a valid Solr local parameter is forwarded. The flaw is in the shared sanitizer, so it affects any endpoint that routes user input through cleanUpQuery. The double-brace bypass applies from v23.10 (the greedy \{(.+)\} regex); a related bare-!join rewrap path is present. This issue has been patched in version 26.05.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2026-10-23 · last modified 2026-10-23.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Intranda Goobi-Viewer-Core — versions >= 23.03, < 26.05

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-55442?: CVE-2026-55442 is a medium-severity vulnerability in Intranda Goobi-Viewer-Core, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2026-10-23.
How severe is CVE-2026-55442?: Medium severity. CVSS v3 base score is 5.3 out of 10.