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🛡️ CVE-2026-40010 — wicket

🔴 CVSS 9.5 — Critical ✅ No Known Exploit CWE-384 NVD
9.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Apache Wicket has a Session Fixation issue

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: None.

Weakness class

CVE-2026-40010 is classified as CWE-384: Session Fixation. A session identifier is not renewed at login, so an identifier planted beforehand becomes an authenticated session.

Affected software

CVE-2026-40010 is recorded against 2 packages.

  • org.apache.wicket:wicket-auth-roles (from 10.0.0-M1 up to 10.9.0)
  • wicket (from 10.0.0 up to 10.9.0)

Timeline and source

Published on 6 May 2026 and last revised on 11 May 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

nvd.nist.gov (Advisory)
github.com (Package)
lists.apache.org (Web)
www.openwall.com (Web)

Same weakness in other software

These advisories are the same class of weakness (CWE-384: Session Fixation) in other software:

Details

Severity CRITICAL
CVSS Score 9.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE CWE-384
Public Exploit ✅ No
Source NVD
Published 2026-05-06
Updated 2026-08-20
Modified 2026-05-11
Fix URL N/A

Affected Packages

Software From version Fixed in
org.apache.wicket:wicket-auth-roles 10.0.0-M1 10.9.0
wicket 10.0.0 10.9.0

Exploit Protection

Are you running wicket?

CVE-2026-40010 carries CVSS 9.5 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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