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-2026-49362 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, 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...

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 ActiveMQ Artemis is vulnerable to a pre-authentication topology disclosure vulnerability due to a missing authentication check in the SUBSCRIBE_TOPOLOGY_V2 handler within CoreProtocolManager.LocalChannelHandler.handlePacket() . An unauthenticated attacker can send a single 5-byte packet vi...

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...

io.quarkiverse.artemis:quarkus-test-artemis (>=3.12.0, <=3.14.3), net.oneandone.ioc-unit:ioc-unit-jms-artemisactivemq (>=6.0.0, <=6.0.1) +35 more potentially affected by CVE-2026-49364 via org.apache.artemis:artemis-server (>=2.50.0, <=2.56.0)

org.apache.artemis:artemis-server MAVEN version =2.50.0, =3.12.0, =6.0.0, =2.50.0, =2.50.0, =2.50.0, =2.50.0, =2.50.0, =2.50.0, =2.50.0, =2.50.0, =2.50.0, =2.50.0, =2.50.0, =2.50.0, =2.50.0, =2.56.0 and more Source cves: CVE-2026-49364 Source advisory: MEND:CVE-2026-49364...

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, 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...

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...

CVE-2026-57967

An unauthenticated remote attacker can exploit a session hijack vulnerability in Apache Artemis (versions 2.50.0 through 2.56.0) and Apache ActiveMQ Artemis (versions 1.0.0 through 2.44.0). The REATTACH_SESSION handler performs zero authentication, looking up sessions by name only and calling tra...

CVE-2026-67593 Apache Artemis, Apache Artemis, Apache ActiveMQ Artemis, Apache ActiveMQ Artemis: Pre-authentication Openwire protocol handling can result in queue deletion

A remote attacker can craft an Openwire RemoveSubscriptionInfo command to cause the deletion of a queue on the Artemis broker before the connection authentication and authorization stage or at any time thereafter. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ...

CVE-2026-67593 Apache Artemis, Apache Artemis, Apache ActiveMQ Artemis, Apache ActiveMQ Artemis: Pre-authentication Openwire protocol handling can result in queue deletion

A remote attacker can craft an Openwire RemoveSubscriptionInfo command to cause the deletion of a queue on the Artemis broker before the connection authentication and authorization stage or at any time thereafter. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ...

EUVD-2026-75245

A remote attacker can craft an Openwire RemoveSubscriptionInfo command to cause the deletion of a queue on the Artemis broker before the connection authentication and authorization stage or at any time thereafter. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ...

CVE-2026-67593

An unauthenticated network attacker can delete arbitrary durable queues on an Apache Artemis broker (or Apache ActiveMQ Artemis ) with the OpenWire protocol enabled. The vulnerability exists because the processRemoveSubscription() method executes pre-authentication without authorization checks, u...

com.io7m.jsay:com.io7m.jsay (>=0.0.1, <=0.0.2), com.jkoolcloud.tnt4j.streams:tnt4j-streams-jms (>=1.14.2, <=2.3.0) +13 more potentially affected by CVE-2026-67593 via org.apache.activemq:artemis-openwire-protocol (>=1.0.0, <=2.44.0)

org.apache.activemq:artemis-openwire-protocol MAVEN version =1.0.0, =0.0.1, =1.14.2, =2.2.94, =2.2.90, =2.2.97, =2.2.97, =2.2.94, =2.2.90, =2.2.97, =2.2.94, =0.1.0, =0.1.0, =1.0.0, =2.31.1, =2.29.0, =2.44.0 Source cves: CVE-2026-67593 Source advisory: MEND:CVE-2026-67593...

org.apache.artemis:apache-artemis (>=2.50.0, <=2.56.0), org.apache.artemis:artemis-features (>=2.50.0, <=2.56.0) +1 more potentially affected by CVE-2026-67593 via org.apache.artemis:artemis-openwire-protocol (>=2.50.0, <=2.56.0)

org.apache.artemis:artemis-openwire-protocol MAVEN version =2.50.0, =2.50.0, =2.50.0, =2.50.0, =2.56.0 Source cves: CVE-2026-67593 Source advisory: MEND:CVE-2026-67593...