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Search: “Apache ActiveMQ”

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CVE-2026-74761: Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Spoofing of RemoveSubscription clientId

Apache ActiveMQ CVE-2026-74761: moderate clientId spoofing in RemoveSubscription handling, affecting Broker, All and apache-activemq, fixed in 6.3.2 and 5.19.11.

The Apache ActiveMQ team disclosed CVE-2026-74761, a moderate-severity spoofing issue in the handling of RemoveSubscription clientId. Affected components include ActiveMQ Broker (activemq-broker), ActiveMQ All (activemq-all) and Apache ActiveMQ in versions 6.0.0 before 6.3.2 and 5.x before 5.19.11. The flaw could allow a client to spoof another client's clientId when removing subscriptions. Users should upgrade to the 6.3.2 or 5.19.11 release lines or later.

oss-security · 8d agoVulnerabilityCVE-2026-747611

CVE-2026-49364: Apache Artemis, Apache ActiveMQ Artemis: Pre-Authentication Cluster Credential Exposure to Discovered Peers

Apache Artemis CVE-2026-49364 exposes cluster credentials to network-adjacent peers discovered before authentication completes.

Apache disclosed a pre-authentication credential exposure issue in Apache Artemis and Apache ActiveMQ Artemis, tracked as CVE-2026-49364. Affected components span artemis-core-client and artemis-server from version 1.0.0 (ActiveMQ Artemis) and 2.50.0 (Artemis) through 2.44.0 and 2.56.0 respectively. An unauthenticated network-adjacent attacker can leverage credentials exposed to discovered cluster peers. Apache rates the issue as important.

oss-security · 7d agoVulnerability 7 sourcesCVE-2026-493641

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

CVE-2026-67593: remote attackers can delete ActiveMQ Artemis queues via pre-authentication Openwire protocol handling in affected versions.

A remote attacker can exploit pre-authentication handling of the Openwire protocol to result in queue deletion on affected Apache Artemis and ActiveMQ Artemis brokers. Affected components include artemis-openwire-protocol and artemis-jakarta-openwire-protocol in Apache Artemis 2.50.0 through 2.56.0, and artemis-openwire-protocol 1.0.0 through 2.44.0 plus artemis-jakarta-openwire-protocol 2.32.0 through 2.44.0 in ActiveMQ Artemis. Apache rates the issue important.

oss-security · 7d agoVulnerability 7 sourcesCVE-2026-675931

CVE-2026-57822: Apache Artemis, Apache ActiveMQ Artemis: Message-based management parameter deserialization may lead to denial of service

Apache fixed CVE-2026-57822, a deserialization flaw in ActiveMQ Artemis management messaging letting authorized clients trigger broker denial of service.

Apache disclosed a deserialization issue in message-based management request handling for Apache Artemis and Apache ActiveMQ Artemis. It affects Apache Artemis (artemis-core-client) 2.50.0 through 2.56.0 and ActiveMQ Artemis (artemis-core-client) 1.3.0 through 2.44.0. Exploitation requires an authenticated client authorized with MANAGE permission using management-via-messaging; parameter processing can trigger denial of service. Apache rates the issue as important.

oss-security · 7d agoVulnerability 7 sourcesCVE-2026-57822

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

CVE-2026-49362: unauthenticated attackers can create arbitrary durable queues in ActiveMQ Artemis via the CORE protocol, enabling denial of service.

A missing authentication check in the CORE protocol handler of Apache Artemis and Apache ActiveMQ Artemis, tracked as CVE-2026-49362, lets unauthenticated remote attackers create arbitrary durable queues. This enables unauthorized broker state manipulation and potential denial of service. Affected versions are artemis-server in Apache Artemis 2.50.0 through 2.56.0 and ActiveMQ Artemis 1.0.0 through 2.44.0. Apache rates the issue as important.

oss-security · 7d agoVulnerability 7 sourcesCVE-2026-493621

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

CVE-2026-57967: unauthenticated attackers can hijack authenticated ActiveMQ Artemis sessions via crafted CORE protocol SESSION_REATTACH packets.

An unauthenticated remote attacker can craft a CORE protocol SESSION_REATTACH packet to steal an existing session and assume ongoing execution of the previously authenticated session on Apache Artemis and ActiveMQ Artemis. Affected versions are artemis-server 2.50.0 through 2.56.0 in Apache Artemis and artemis-server 1.0.0 through 2.44.0 in Apache ActiveMQ Artemis. Apache rates the issue important.

oss-security · 7d agoVulnerability 7 sourcesCVE-2026-579671

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

CVE-2026-49363 lets unauthenticated attackers subscribe to ActiveMQ Artemis CORE topology and harvest cluster node details pre-authentication.

An unauthenticated remote attacker connecting with the CORE protocol can discover cluster node details by sending a SUBSCRIBE_TOPOLOGY request before authentication, tracked as CVE-2026-49363. The flaw affects artemis-server in Apache Artemis 2.50.0 through 2.56.0 and Apache ActiveMQ Artemis 1.0.0 through 2.44.0. Apache rates the issue as moderate; impact is limited to information disclosure of topology data.

oss-security · 7d agoVulnerability 7 sourcesCVE-2026-493631

CVE-2026-75880: Apache Artemis, Apache ActiveMQ Artemis: Message selector wildcard handling could lead to denial of service

CVE-2026-75880: authenticated ActiveMQ Artemis clients can cause denial of service via crafted selector wildcard handling in affected versions.

An authenticated client can attach a consumer with a selector containing crafted wildcard usage, causing excessive evaluation during message delivery attempts that occupies a shared broker thread and leads to denial of service. Affected versions are Apache Artemis artemis-selector 2.50.0 through 2.56.0 and Apache ActiveMQ Artemis artemis-selector 1.0.0 through 2.44.0. Apache rates the issue moderate.

oss-security · 7d agoVulnerability 7 sourcesCVE-2026-758801