CVE-2026-66391: Apache Wicket: leaked and missing CSP headers

[Pedro Henrique Oliveira dos Santos <pedro () apache org>]

Severity: important 

Affected versions:

- Apache Wicket 9.0.0 through 9.23.0
- Apache Wicket 10.0.0 through 10.9.0

Description:

Use of Insufficiently Random Values, Protection Mechanism Failure vulnerability in Apache Wicket.

This issue affects Apache Wicket: from 9.0.0 through 9.23.0, from 10.0.0 through 10.9.0.

Users are recommended to upgrade to version 10.10.0, which fixes the issue.

References:

https://wicket.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-66391