CVE-2026-40010

Name: CVE-2026-40010
Creator: NVD / NIST
Published: 2026-05-06T10:16:20.093+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 0.38%

Last modified Jun 17, 2026

CVE-2026-40010 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. 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.. EPSS estimates a 0.38% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS Probability

0.38%

29.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Apache	Wicket	>= 8.0.0, <= 8.17.0
Apache	Wicket	>= 9.0.0, <= 9.22.0
Apache	Wicket	>= 10.0.0, < 10.9.0

References

https://lists.apache.org/thread/61wsc0xdtfd5oozojfx7by9w3jwgkmv1Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/05/06/1Mailing List, Third Party Advisory

Timeline

Published: May 6, 2026
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2026-40010?

How severe is CVE-2026-40010?

CVE-2026-40010 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.

How do I fix CVE-2026-40010?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-40010?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST