Is CVE-2026-101292 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-101292 being exploited in the wild.

How severe is CVE-2026-101292?

High severity, with a CVSS score of 8.2, published 28 September 2026.

Which products and versions are affected?

Apache Activemq Artemis before 2.34.0.

Is there a fix for CVE-2026-101292?

No fixed version is recorded yet. Check the vendor's advisory in the references below. 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-2026-101292 attacked?

It is attacked over the network, in a hosted service.

Am I affected by CVE-2026-101292?

Check whether you run Apache Activemq Artemis 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.

CVE-2026-101292: Apache ActiveMQ Artemis unsafe reflection in federation

CVE-2026-101292 · Severity: high · CVSS 8.2 · Published 2026-09-28

Apache ActiveMQ Artemis, a message broker used in enterprise systems, contains an unsafe reflection vulnerability that allows authenticated federation peers to load and execute arbitrary code on the broker. An attacker can send a specially crafted message to cause denial of service, memory exhaustion, or manipulate broker state by triggering uncontrolled class instantiation.

Technologies: Apache Activemq Artemis. Vendors: Apache.

Quick answers

Is CVE-2026-101292 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-101292 being exploited in the wild.
How severe is CVE-2026-101292?: High severity, with a CVSS score of 8.2, published 28 September 2026.
Which products and versions are affected?: Apache Activemq Artemis before 2.34.0.
Is there a fix for CVE-2026-101292?: No fixed version is recorded yet. Check the vendor's advisory in the references below. 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-2026-101292 attacked?: It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-101292?: Check whether you run Apache Activemq Artemis 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.

Technical details

The FederationStreamConnectMessage.getFederationPolicy() method calls Class.forName().getConstructor().newInstance() on unsanitized class names received from the CORE protocol wire buffer without validation. An authenticated federation peer can exploit this by sending a FEDERATION_DOWNSTREAM_CONNECT packet with a malicious class name, causing arbitrary class loading and instantiation with static initializer and constructor side effects executing with broker privileges.

Affected products

Apache ActiveMQ Artemis before 2.34.0

Timeline

2026-09-28: disclosed

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.