CVE-2026-82956: Improper neutralization of input during web page generation in Apache Wicket. org.apache.wicket.ajax.AjaxNewW

Routine

HIGH 7.6WATCHLIST

CVE-2026-82956 is a high-severity flaw (CVSS 7.6) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper neutralization of input during web page generation in Apache Wicket. org.apache.wicket.ajax.AjaxNewWindowNotifyingBehavior notices that a page instance has been opened in a second browser window or tab. It asks the browser for the value of window.name, which reaches the server as the request parameter windowName, and remembers what the browser reported in a field of the behaviour. That field is part of the page's serialized state, so th

Why this priority

High severity
On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.6 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Passive
EPSS exploit chance	n/a
CISA exploited list	No
Weakness	CWE-79
Published	2026-11-01
Last modified	2026-11-01

Publisher (CNA): Apache Software Foundation

Last updated 2026-11-01 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Timeline

2026-11-01 23:17 UTCPublished CVE record published
2026-11-01 23:17 UTCUpdated Record last modified

Advisories and coverage

Research and news

Vulners Bulletins: CVE-2026-82956 2026-11-01
VulDB Recent Entries: CVE-2026-82956 | Apache Wicket up to 8.19.0/9.24.0/10.11.0 AjaxNewWindowNotifyingBehavior windowName neutralization 2026-11-01

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-82956?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2026-82956 being exploited?

CVE-2026-82956 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-82956 affect?

CVE-2026-82956 affects affected software. Severity is high (CVSS 7.6). Improper neutralization of input during web page generation in Apache Wicket. org.apache.wicket.ajax.AjaxNewWindowNotifyingBehavior notices that a page instance has been opened in a second browser window or tab. It asks the browser for the

How urgent is CVE-2026-82956?

Priority 32/100. High severity; On your watchlist

References

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