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Advisory severityLowApache Software Foundation Updated

Low [CVE-2026-97890] The embedded HTTP server does not invalidate the previous session identifier when an application changes the session id, e.g

This low-severity Apache Software Foundation advisory covers CVE-2026-97890; related products: Apache TomEE.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-97890 Source published Source updated

VulniPulse record published Record updated

CVE-2026-97890
Related products & platforms
Apache Software FoundationHTTP ServerTomcat
Open source advisory

Summary

The embedded HTTP server does not invalidate the previous session identifier when an application changes the session id, e.g. after login. An attacker who can plant a session identifier in a victim's browser can hijack the victim's authenticated session.

Users are recommended to block network access to the embedded HTTP server from untrusted clients, or to migrate to the Tomcat based TomEE distributions.

Affected product named by the advisory: Apache TomEE.

Is CVE-2026-97890 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-97890 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-97890?

Upgrade to a fixed release named by Apache:

  • 10.0.0-M1

Confirm against the vendor advisory before you patch.

Affected versions
  • Apache TomEE 7.0.0-M1 before 10.0.0-M1
  • Apache TomEE 10.0.0-M1 through 10.2.0
  • Apache TomEE 11.0.0-M1

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

Fixed versions
  • 10.0.0-M1

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

Mitigation checklist

Temporary workarounds
  • Users are recommended to block network access to the embedded HTTP server from untrusted clients, or to migrate to the Tomcat based TomEE distributions.

Official advisory · high-confidence parse· fetched 2 hours ago·verify at source

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