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Fencer Intel
low —

CVE-2026-111246 json

Apache TomEE: HTTP sessions shared across web applications in embedded HTTP server

published yesterday modified yesterday also EUVD-2026-121244

cvss
—
not scored
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 7%
public exploits
0
none known

Summary

The embedded OpenEJB HTTP server does not isolate HTTP sessions between web applications. A remote attacker can use a session established in one web application in another one, which then trusts session state set by the first application. Only deployments hosting several web applications on the embedded HTTP server are affected. Users are recommended to block network access to the embedded HTTP server from untrusted clients, or to migrate to the Tomcat based TomEE distributions.

Patch / fix

  • maven org.apache.tomee:openejb-http 10.0.0-M1
  • Apache Software Foundation Apache TomEE 10.0.0-M1

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Exploit prediction

0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-11).

Affected packages

ecosystem package affected fixed in
maven org.apache.openejb:openejb-http
>=4.5.2, <=4.7.5
 no fix listed
maven org.apache.tomee:openejb-http
>=7.0.0-M1, <10.0.0-M1
>=10.0.0-M1, <=10.2.0
11.0.0-M1
10.0.0-M1

Affected products

  • Apache Software Foundation Apache TomEE

Classification

Weakness
  • CWE-668 Exposure of Resource to Wrong Sphere

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.