Vulnerability Description
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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/intranda/goobi-viewer-core/commit/330da2f8255a9ed2200ba46b98b
- https://github.com/intranda/goobi-viewer-core/commit/5a59ffa5d76169a4ad3cc396023
- https://github.com/intranda/goobi-viewer-core/releases/tag/v26.05
- https://github.com/intranda/goobi-viewer-core/security/advisories/GHSA-2r24-qxpf
FAQ
What is CVE-2026-55442?
CVE-2026-55442 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 ...
How severe is CVE-2026-55442?
CVE-2026-55442 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-55442?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.