Apache Artemis 1.0.0 < 2.45.0 / 2.50.0 < 2.57.0 Multiple Vulnerabilities

The version of Apache Artemis formerly Apache ActiveMQ Artemis installed on the remote host is affected by multiple vulnerabilities: - An unauthenticated remote attacker can craft a CORE protocol SESSIONREATTACH packet to steal an existing session and assume ongoing execution of the previously...

artemis-server: undertow-core: wildfly-messaging-activemq-subsystem: artemis core protocol permits unauthed queue creation

Artemis CORE protocol channel allows unauthed queue creation. an unauthenticated attacker can send CREATEQUEUE packets on channel 1 via the :8080 HTTP-upgrade path to create arbitrary durable JMS queues on the embedded broker. This can be used for resource exhaustion and persistent broker-state...

artemis-server: undertow-core: wildfly-messaging-activemq-subsystem: artemis core protocol permits unauthed queue creation

Artemis CORE protocol channel allows unauthed queue creation. an unauthenticated attacker can send CREATEQUEUE packets on channel 1 via the :8080 HTTP-upgrade path to create arbitrary durable JMS queues on the embedded broker. This can be used for resource exhaustion and persistent broker-state...

CVE-2026-49363

A missing authentication vulnerability was found in Apache ActiveMQ Artemis. The SUBSCRIBETOPOLOGYV2 handler in CoreProtocolManager.LocalChannelHandler.handlePacket processes topology subscription requests on channel0 with zero authentication -- no call to getSecurityStore, no credential...

CVE-2026-49362

Artemis CORE protocol channel allows unauthed queue creation. an unauthenticated attacker can send CREATEQUEUE packets on channel 1 via the :8080 HTTP-upgrade path to create arbitrary durable JMS queues on the embedded broker. This can be used for resource exhaustion and persistent broker-state...

CVE-2026-57967

An unauthenticated remote attacker can craft a CORE protocol SESSIONREATTACH packet to steal an existing session and assume ongoing execution of the previously authenticated session. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.0.0 through 2.44.0...

CVE-2026-49363

An unauthenticated remote attacker connecting with the CORE protocol can discover cluster node details by sending a SUBSCRIBETOPOLOGY request prior to authentication. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.0.0 through 2.44.0. Users are...

CVE-2026-49362

An unauthenticated remote attacker can create arbitrary durable queues via the CORE protocol, leading to unauthorized broker state manipulation and potential denial of service. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.0.0 through 2.44.0. Users...

CVE-2026-49362

Apache Artemis (versions 2.50.0–2.56.0) and Apache ActiveMQ Artemis (1.0.0–2.44.0) contain a missing authentication flaw in the CORE protocol handler . An unauthenticated remote attacker can send CREATE_QUEUE packets on channel 1 via the :8080 HTTP-upgrade path to create arbitrary durable JMS que...

CVE-2026-49362 Apache Artemis, Apache ActiveMQ Artemis: Missing Authentication in CORE Protocol Handler Allows Unauthorized Queue Creation

An unauthenticated remote attacker can create arbitrary durable queues via the CORE protocol, leading to unauthorized broker state manipulation and potential denial of service. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.0.0 through 2.44.0. Users...

EUVD-2026-75250

An unauthenticated remote attacker can create arbitrary durable queues via the CORE protocol, leading to unauthorized broker state manipulation and potential denial of service. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.0.0 through 2.44.0. Users...

CVE-2026-49362 Apache Artemis, Apache ActiveMQ Artemis: Missing Authentication in CORE Protocol Handler Allows Unauthorized Queue Creation

An unauthenticated remote attacker can create arbitrary durable queues via the CORE protocol, leading to unauthorized broker state manipulation and potential denial of service. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.0.0 through 2.44.0. Users...

CVE-2026-49363

Apache Artemis (2.50.0–2.56.0) and ActiveMQ Artemis (1.0.0–2.44.0) contain a pre-authentication information disclosure vulnerability in the CORE protocol. The SUBSCRIBE_TOPOLOGY_V2 handler in CoreProtocolManager.LocalChannelHandler.handlePacket() processes topology subscription requests on channe...

EUVD-2026-75249

An unauthenticated remote attacker connecting with the CORE protocol can discover cluster node details by sending a SUBSCRIBETOPOLOGY request prior to authentication. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.0.0 through 2.44.0. Users are...

CVE-2026-49363 Apache Artemis, Apache ActiveMQ Artemis: Pre-Authentication Information Disclosure in CORE Protocol Topology Subscription

An unauthenticated remote attacker connecting with the CORE protocol can discover cluster node details by sending a SUBSCRIBETOPOLOGY request prior to authentication. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.0.0 through 2.44.0. Users are...

CVE-2026-49363 Apache Artemis, Apache ActiveMQ Artemis: Pre-Authentication Information Disclosure in CORE Protocol Topology Subscription

An unauthenticated remote attacker connecting with the CORE protocol can discover cluster node details by sending a SUBSCRIBETOPOLOGY request prior to authentication. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.0.0 through 2.44.0. Users are...

CVE-2026-57967 Apache Artemis, Apache ActiveMQ Artemis: Missing authentication on CORE protocol session reattachment

An unauthenticated remote attacker can craft a CORE protocol SESSIONREATTACH packet to steal an existing session and assume ongoing execution of the previously authenticated session. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.0.0 through 2.44.0...

EUVD-2026-75246

An unauthenticated remote attacker can craft a CORE protocol SESSIONREATTACH packet to steal an existing session and assume ongoing execution of the previously authenticated session. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.0.0 through 2.44.0...

CVE-2026-57967

Apache Artemis (versions 2.50.0–2.56.0) and Apache ActiveMQ Artemis (1.0.0–2.44.0) are affected by a critical session-hijacking vulnerability in the CORE protocol REATTACH_SESSION handler . The handler performs zero authentication —it looks up the session by name only and calls transferConnection...

CVE-2026-57967 Apache Artemis, Apache ActiveMQ Artemis: Missing authentication on CORE protocol session reattachment

An unauthenticated remote attacker can craft a CORE protocol SESSIONREATTACH packet to steal an existing session and assume ongoing execution of the previously authenticated session. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: from 1.0.0 through 2.44.0...