Is CVE-2026-40010 actively exploited?

No active exploitation of CVE-2026-40010 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-40010 be exploited remotely?

Yes. CVE-2026-40010 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-40010?

CVE-2026-40010 has a CVSS score of 9.1 (CRITICAL).

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CRITICAL

CVE-2026-40010

Published: May 6, 2026· Updated: May 7, 2026

9.1

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:5.0th

Official Description

Missing invocation of Servlet http web request method changeSessionId after session binding can be exploited for a session fixation attack in Apache Wicket.

This issue affects Apache Wicket: from 8.0.0 through 8.17.0, 9.0.0, from 10.0.0 through 10.8.0.

Users are recommended to upgrade to version 10.9.0, which fixes the issue.

NVD Source

Technical Analysis

CVE-2026-40010 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 9.1.