Quick answers
- Is CVE-2026-111256 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-111256 being exploited in the wild.
- How severe is CVE-2026-111256?
- Informational severity, published 10 November 2026.
- Which products and versions are affected?
- Apache OpenEJB.
- Is there a fix for CVE-2026-111256?
- No fixed version is recorded yet. Block network access to the embedded HTTP server from untrusted clients, or migrate to Tomcat-based TomEE distributions. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-111256 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-111256?
- Check whether you run Apache OpenEJB. 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
Block network access to the embedded HTTP server from untrusted clients, or migrate to Tomcat-based TomEE distributions.
Technical details
JAX-WS and JAX-RS endpoint authentication configuration is not enforced by the embedded OpenEJB HTTP server, whereas the Tomcat-based deployment correctly applies it. An unauthenticated remote attacker can invoke protected web service operations. The vulnerability requires the embedded HTTP server to be used and the endpoints to rely on the silently-ignored authentication method for security.
Affected products
- Apache OpenEJB
Timeline
- 2026-11-10: disclosed