Medium6.5Apache Software Foundation

Medium [CVE-2026-66391] Use of Insufficiently Random Values, Protection Mechanism Failure vulnerability in Apache Wicket

This medium-severity Apache Software Foundation advisory covers CVE-2026-66391 affecting Apache Wicket.

CVE-2026-66391 Published Jul 27, 2026Updated by vendor Jul 28, 2026

CVE-2026-66391

Affected products & platforms

Apache Software FoundationUnclassified

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Summary

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 versions

9.0.0 through 9.23.0
10.0.0 through 10.9.0.
through 10.9.0

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

10.10.0

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

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

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Official vendor advisoryofficial
Official advisory page fetched and parsed for the summary, affected/fixed versions and remediation guidance it provides.
Apache Software Foundation
CVE.org CNA recordCVE.org
Independent CNA record used for near-real-time discovery and missed-CVE reconciliation. Discovered from the machine-readable feed https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/delta.json; this link opens the CVE.org record for CVE-2026-66391 instead of the raw feed document.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-66391NVD CVE.org MITRE

Official resources

ASF Security — reporting & CVE process
Official documentation
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Apache project downloads (fixed releases)
Official documentation
Official ASF download tree — fetch the fixed release named in this advisory from the project's directory.

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