CVE-2026-66391: Apache Wicket: leaked and missing CSP headers
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Apache Wicketto a version that resolves this vulnerability.Fixed in 10.10.0
Event History
Frequently Asked Questions
What is the severity of CVE-2026-66391?
The severity of CVE-2026-66391 is medium, with a CVSS score of 6.5.
How do I fix CVE-2026-66391?
To fix CVE-2026-66391, upgrade to Apache Wicket version 10.10.0 or later.
What impact does CVE-2026-66391 have on Apache Wicket?
CVE-2026-66391 can lead to leaked and missing Content Security Policy headers, resulting in potential security vulnerabilities.
Which versions of Apache Wicket are affected by CVE-2026-66391?
CVE-2026-66391 affects Apache Wicket versions from 9.0.0 to 9.23.0 and from 10.0.0 to 10.9.0.
What type of vulnerability is CVE-2026-66391 classified as?
CVE-2026-66391 is classified as a Protection Mechanism Failure vulnerability due to insufficiently random values.