CVE-2026-97872: Java EJB authentication bypass over Hessian protocol

CVE-2026-97872 · Severity: info · Published 2026-11-10

Enterprise Java applications using the optional Hessian remoting protocol may expose EJB components with authentication and transport security settings silently unenforced. A remote attacker without credentials can invoke exposed EJB methods, potentially accessing sensitive business logic or data. This affects only deployments that explicitly enable the Hessian module with such configurations.

Vendors: Unknown.

Quick answers

Is CVE-2026-97872 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-97872 being exploited in the wild.
How severe is CVE-2026-97872?
Informational severity, published 10 November 2026.
Which products and versions are affected?
<UNKNOWN> Hessian.
Is there a fix for CVE-2026-97872?
No fixed version is recorded yet. Block network access to Hessian endpoints from untrusted clients, or migrate to an alternative remoting protocol. 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-2026-97872 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-97872?
Check whether you run Unknown Hessian. 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 Hessian endpoints from untrusted clients, or migrate to an alternative remoting protocol.

Technical details

When EJBs are exposed via the Hessian protocol, configured authentication and transport security settings are not enforced on incoming requests. An unauthenticated remote attacker can invoke EJB methods directly over the network without authentication. The vulnerability requires the Hessian module to be explicitly enabled in the deployment.

Affected products

  • <UNKNOWN> Hessian

Timeline

  • 2026-11-10: disclosed

References

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