CVE-2026-49364
Apache Artemis: unauthenticated network-adjacent attacker can leverage discovery to capture cluster administrative credentials during the initial cluster connection handshake
CVE-2026-49364: Apache Artemis: unauthenticated network-adjacent attacker can leverage discovery to capture cluster administrative credentials during the…
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
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CVE-2026-49364 key facts
- CISA KEV
- Not listed (catalog checked )
- Highest advisory severity
- Critical
- CVSS base score
- 9.1 (Apache), 8 (Red Hat)
- CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H(Red Hat)
- Fixed releases
- Apache: 2.57.0
- Red Hat: 2.57.0, artemis-server, org.apache.activemq/artemis-server:2.16.0.redhat-00057, eap7-activemq-artemis-0:2.16.0-23.redhat_00058.1.el7eap, eap7-jackson-annotations-0:2.18.9-1.redhat_00003.1.el7eap, eap7-jackson-core-0:2.18.9-1.redhat_00003.1.el7eap and 43 more in the advisory
- VulniPulse record
- Published · Updated
Scores, vectors, weaknesses and fixed releases are quoted from vendor advisories that cover only CVE-2026-49364; bulletin-wide values are not repeated here.
Is CVE-2026-49364 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-49364 is not in the CISA KEV catalog (checked ) and no tracked advisory for it reports exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2026-49364?
Upgrade to a fixed release named by the vendor:
- Apache: 2.57.0
- Red Hat: 2.57.0, artemis-server, org.apache.activemq/artemis-server:2.16.0.redhat-00057, eap7-activemq-artemis-0:2.16.0-23.redhat_00058.1.el7eap, eap7-jackson-annotations-0:2.18.9-1.redhat_00003.1.el7eap, eap7-jackson-core-0:2.18.9-1.redhat_00003.1.el7eap
- Users are recommended to upgrade to version 2.57.0, which fixes the issue. (Apache)
Vendor advisory comparison
Apache
1 advisory- Advisory severityCritical9.1
Critical [CVE-2026-49364] Apache Artemis: unauthenticated network-adjacent attacker can leverage discovery to capture cluster administrative credentials during the initial cluster connection handshake
CVE-2026-49364Source published Source updated
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 in this advisory
- Apache Artemis
- Source-reported affected versions
- 2.50.0 through 2.56.0
- 1.0.0 through 2.44.0.
- through 2.44.0
- Source-reported fixed versions
- 2.57.0
- Mitigation guidance
- Users are recommended to upgrade to version 2.57.0, which fixes the issue.
Red Hat
1 advisory- Advisory severityHigh8.0
High [CVE-2026-49364] artemis cluster password leak via jgroups spoof
CVE-2026-49364Source published Source updated
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. Artemis and JGroups lack of access controls in certain situations can allow an attacker to spoof a password request in JGroups and subsequently gain access to the cluster. This allows the attacker manage-level authority for provided messaging and queue operations. Red Hat severity: Important — CVSS 8 (CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). Affected Red Hat products: Red Hat AMQ Broker 7.13.6; Red Hat AMQ Broker 7.14.1; Red Hat JBoss…
- Affected products in this advisory
- Red Hat AMQ Broker 7.13.6
- Red Hat AMQ Broker 7.14.1
- Red Hat JBoss Enterprise Application Platform 7.4.25
- Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7
5 more entries in the full advisory.
- Source-reported affected versions
- 2.50.0
- 2.56.0
- 1.0.0
- 2.44.0
- Source-reported fixed versions
- 2.57.0
- artemis-server
- org.apache.activemq/artemis-server:2.16.0.redhat-00057
- eap7-activemq-artemis-0:2.16.0-23.redhat_00058.1.el7eap
45 more entries in the full advisory.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
More Apache advisories
- CVE-2026-49362Sep 10, 2026Apache Artemis: unauthenticated remote attacker can create arbitrary durable queues
- CVE-2026-49363Sep 10, 2026Apache Artemis: unauthenticated remote attacker connecting with the CORE protocol can
- CVE-2026-57822Sep 10, 2026Apache Artemis: When the broker is processing message-based management requests, sent
- CVE-2026-57967Sep 10, 2026Apache Artemis, Apache ActiveMQ Artemis: Missing authentication on CORE protocol session
- CVE-2026-67593Sep 10, 2026Apache Artemis: remote attacker can craft an Openwire RemoveSubscriptionInfo command
- CVE-2026-75880Sep 10, 2026Apache Artemis, Apache ActiveMQ Artemis: Message selector wildcard handling could lead
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