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CVE-2026-111246

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

Products / packages Apache Software Foundation Apache TomEE

Published

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Severity and exploitation

Not in CISA KEVNo CVSS score

KEV coverage does not rule out exploitation.

KEV checked 15/11/2026, 00:40:33 UTC

Severity

unknown

CVSS measures technical severity, not the likelihood of an attack.

Known exploitation

Not listed in the checked CISA KEV catalog

Absence from CISA KEV does not rule out attacks.

Public exploit

Not established by this record

Missing evidence does not mean no public exploit exists.

Remediation

Fix status not established

No structured fix or guidance is available here. Check the latest publisher advisory.

What this means

Apache TomEE's embedded HTTP server shares HTTP sessions across web applications, allowing a remote attacker to use a session from one application in another. This affects deployments with multiple web applications on the embedded server, specifically versions 4.5.2 to 4.7.5, 7.0.0-M1 to 10.0.0-M1, and 11.0.0-M1. A remote attacker can exploit this weakness.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Attack conditions

No attack-condition excerpt has been identified here. Review the full source description and references for authentication, network access, and configuration requirements.

Review supporting sources →

Affected versions

Check the exact model, release, and any platform requirements against your installation.

Apache Software Foundation · apache

Apache TomEE

1 range
apache version evidence

Package identity

pkg:maven/org.apache.openejb/openejb-httpExplore org.apache.openejb:openejb-http →

Identity supplied by apache. Version matching requires compatible range evidence.

Compare with this publisher’s ranges. This does not inspect your installation.

affected

4.5.2 → through 4.7.5

semver versions

unaffected

unknown

Other versions: unaffected

Apache Software Foundation · apache

Apache TomEE

3 ranges
apache version evidence

Package identity

pkg:maven/org.apache.tomee/openejb-httpExplore org.apache.tomee:openejb-http →

Identity supplied by apache. Version matching requires compatible range evidence.

Compare with this publisher’s ranges. This does not inspect your installation.

affected

7.0.0-M1 → before 10.0.0-M1

semver versions

10.0.0-M1 → through 10.2.0

semver versions

11.0.0-M1

semver versions

unaffected

unknown

Other versions: unaffected

Automatic dependency matching is unavailable for this record. Use the product evidence and publisher’s instructions to check your installation.

What to do

Compare your installed product and version with the affected versions above. A matching product name alone does not confirm exposure.

No structured fix or remediation guidance is available here. Check the full source description and vendor’s latest advisory for a patch or workaround; do not assume another version is safe.

cve.new guidance unless attributed to a publisher. This page does not inspect your installation.

Public exploit evidence

No public exploit reference is identified in the imported evidence. This is not a claim that no exploit exists.

Original source description

Read the full publisher description

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.

References

1 sources
lists.apache.org/thread/3l9twg2ywvgwjffv4wwop2fmtp05fp39
Vendor advisoryapache

Inside the record

Evidence available

Package identity
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers · not supplied

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-111246

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-668 ↗

CWE-668 Exposure of Resource to Wrong Sphere

apache

Related →
Contributing organizations · 1
apache

Assigning organization

2026-11-10

Timeline

All times UTC

  1. Advisory published

    Publication date supplied by the source.

  2. Last imported by cve.new

    Latest catalog import, not the date we first saw this advisory.

What changed

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