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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.
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