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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.

PUBLISHED Reserved 2026-04-08 | Published 2026-05-06 | Updated 2026-05-06 | Assigner apache

Problem types

Posssible session fixation attack in Apache Wicket.

Product status

Default status
unaffected

10.0.0 (semver)
affected

8.0.0 (semver)
affected

9.0.0 (semver)
affected

References

www.openwall.com/lists/oss-security/2026/05/06/1

lists.apache.org/thread/61wsc0xdtfd5oozojfx7by9w3jwgkmv1 vendor-advisory

cve.org (CVE-2026-40010)

nvd.nist.gov (CVE-2026-40010)

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