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CVE-2026-49364 An unauthenticated network-adjacent attacker can leverage discovery to capture cluster administrative credentials during…

Description

An unauthenticated network-adjacent attacker can leverage discovery to capture cluster administrative credentials during the initial cluster connection handshake. 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 recommended to upgrade to version 2.57.0, which fixes the issue.

Affected products and versions

Product Affected versions Fixed in
Apache Artemis 2.50 2.50.0 → 2.56.0 No fix stated
Apache ActiveMQ Artemis 1.0 1.0.0 → 2.44.0 No fix stated

References

Timeline

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Other CVEs of Apache Artemis

The 9 CVEs of Apache Artemis →
CVE-2026-49362 An unauthenticated remote attacker can create arbitrary durable queues via the CORE protocol, leading to unauthorized… Not rated CVE-2026-49363 An unauthenticated remote attacker connecting with the CORE protocol can discover cluster node details by sending a… Not rated CVE-2026-57822 When the broker is processing message-based management requests, sent by an authenticated messaging client that is… Not rated CVE-2026-57967 An unauthenticated remote attacker can craft a CORE protocol SESSION_REATTACH packet to steal an existing session and… Not rated
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