CVE-2026-111257: Apache TomEE default administrative user authentication bypass

CVE-2026-111257 · Severity: info · Published 2026-11-10

Apache TomEE is a Java application server that provides enterprise services for web applications. With default configuration and an empty user database, TomEE automatically creates an administrative account with a well-known password, allowing an attacker to log in remotely and gain unauthorized access to web applications and administrative functions. This enables attackers to take over deployed applications or modify server configurations.

Technologies: Apache TomEE. Vendors: Apache.

Quick answers

Is CVE-2026-111257 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-111257 being exploited in the wild.
How severe is CVE-2026-111257?
Informational severity, published 10 November 2026.
Which products and versions are affected?
Apache TomEE versions prior to 10.3.0 and 11.0.0-M2.
Is there a fix for CVE-2026-111257?
Yes: fixed in TomEE 10.3.0, 11.0.0-M2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-111257 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-111257?
Check whether you run Apache TomEE at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: TomEE 10.3.0, 11.0.0-M2

Technical details

The vulnerability exists in TomEE's default realm configuration, which silently provisions an administrative user with hardcoded credentials when no users are defined in the default user database. An unauthenticated remote attacker can exploit this via the network to obtain administrative privileges, bypassing authentication controls. The issue is fixed in versions 10.3.0 and 11.0.0-M2.

Affected products

  • Apache TomEE versions prior to 10.3.0 and 11.0.0-M2

Timeline

  • 2026-11-10: disclosed

References

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