CVE-2026-71378 Apache Software Foundation CVE debrief

Who should care

Apache Wicket users, administrators, and developers who use Wicket versions 9.1.0 through 9.23.0 and 10.0.0 through 10.10.0 should be aware of this vulnerability and take steps to mitigate it. This includes reviewing and updating affected versions of Apache Wicket, monitoring for potential cross-site request forgery attacks, and prioritizing upgrades to version 9.24.0 or 10.11.0. Security teams and vulnerability management teams should also be aware of the potential impact of this vulnerability on their systems and take steps to mitigate it. Additionally, operators and platform administrators should review the affected systems and take steps to protect them from potential attacks. The vulnerability can be mitigated by upgrading to a fixed version, reviewing and updating affected systems, and monitoring for potential attacks. Compensating controls, such as web application firewalls, can also be used to help mitigate the vulnerability. Asset inventory and rollback/change windows should also be reviewed to ensure that affected systems are properly tracked and updated. Source tracking and monitoring can also help to detect and respond to potential attacks. Overall, a comprehensive approach that includes upgrading to a fixed version, reviewing and updating affected systems, and monitoring for potential attacks is necessary to mitigate this vulnerability. The vulnerability is a high-priority issue that requires immediate attention from Apache Wicket users and administrators. The vulnerability can have a significant impact on the security of affected systems, and mitigating it is essential to prevent potential attacks. The recommended actions include upgrading to a fixed version, reviewing and updating affected systems, and monitoring for potential attacks. The vulnerability requires a thorough review of affected systems and a comprehensive approach to mitigate it. The vulnerability is a cross-site request forgery vulnerability that can be exploited to run listeners inside an authenticated session, potentially leading to cross-site request forgery attacks. The vulnerability affects Apache Wicket versions 9.1.0 through 9.23.0 and 10.0.0 through 10.10.0. Users are highly

Technical summary

The FetchMetadataResourceIsolationPolicy in Apache Wicket has two allowances that are unsafe when guarding actions on a page: allowing 'simple top-level navigation' and unconditionally allowing Sec-Fetch-Site: same-site. These allowances can be exploited to run listeners inside an authenticated session, potentially leading to cross-site request forgery attacks. The vulnerability affects Apache Wicket versions 9.1.0 through 9.23.0 and 10.0.0 through 10.10.0. Users are recommended to upgrade to version 9.24.0 or 10.11.0, which fix the issue.

Defensive priority

Apache Wicket users should prioritize upgrading to version 9.24.0 or 10.11.0 to address the cross-site request forgery vulnerability.

Recommended defensive actions

• Upgrade to Apache Wicket version 9.24.0 or 10.11.0
• Review and update affected versions of Apache Wicket
• Monitor for potential cross-site request forgery attacks
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.

Evidence notes

The CVE-2026-71378 issue involves a cross-site request forgery vulnerability in Apache Wicket versions 9.1.0 through 9.23.0 and 10.0.0 through 10.10.0. The vulnerability is due to the default policy of FetchMetadataResourceIsolationPolicy allowing unsafe requests. Users are recommended to upgrade to version 9.24.0 or 10.11.0, which fix the issue. Evidence is limited, and further verification is required to determine the full scope of the vulnerability.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.