9.1

CVE-2026-40010: apache software foundation apache wicket Session Fixation

CVSS: 9.1v3.1CriticalModified
AliasesGHSA-qpjw-p3jg-59j6
Published 06-05-2026Last modified 07-05-2026
Open JSON

Vulnerability summary

CVE-2026-40010 is a critical (CVSS 9.1) Session Fixation vulnerability in apache software foundation apache wicket. EPSS estimates a 0.61% chance of exploitation in the next 30 days, higher than 48.4% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.1/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.61%
0%100%
Low · +0.24 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 06-05-2026
    PublishedVulnerability first disclosed.
  2. 07-05-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.61%

Chance of exploitation in the next 30 days

Percentile

48%

Versus all other CVEs

30-day change

+0.24 pp

From 0.38% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.61%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Apache1 product
  • wicket≥ 8.0.0, ≤ 8.17.0 | ≥ 9.0.0, ≤ 9.22.0 | ≥ 10.0.0, < 10.9.0
Apache software foundation1 product
  • apache wicket≥ 10.0.0, ≤ 10.8.0 | ≥ 8.0.0, ≤ 8.17.0 | ≥ 9.0.0, ≤ 9.22.0
Org.apache.wicket1 product
  • wicket-auth-roles≥ 8.0.0-M1, ≤ 8.17.0 | ≥ 9.0.0-M1, ≤ 9.22.0 | ≥ 10.0.0-M1, < 10.9.0

3 vendors · 3 products

References

4 links