Quick answers
- Is CVE-2026-55442 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-55442 being exploited in the wild.
- How severe is CVE-2026-55442?
- Medium severity, with a CVSS score of 5.3, published 23 October 2026.
- Which products and versions are affected?
- Intranda Goobi viewer 23.03 to before 26.05.
- Is there a fix for CVE-2026-55442?
- Yes: fixed in 26.05. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-55442 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-55442?
- Check whether you run Intranda Goobi viewer at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 26.05
Technical details
The SolrTools.cleanUpQuery() method uses a greedy regex pattern to strip Solr local-parameter syntax ({!...}) from user input before it reaches Solr, but the pattern can be bypassed by double-bracing: {{!...}} has its outer braces stripped, leaving {!...} intact and forwarded to Solr. The vulnerability affects any endpoint routing user input through this sanitizer, with the double-brace bypass present from v23.10 onward. A network attacker with access to affected search endpoints can inject arbitrary Solr local parameters without authentication.
Affected products
- intranda Goobi viewer 23.03 to before 26.05
Timeline
- 2026-10-23: disclosed