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CVE-2026-49364VulnerabilityPublished 09/10/2026

CVE-2026-49364: Apache Software Foundation Apache Artemis · Missing authentication for critical function

Affects Apache Software Foundation Apache ArtemisSource CVE Database V5

0

Not known to be exploited · CVSS 9.1 Critical · fixed in 2.57.0 : patch Apache Software Foundation Apache Artemis as a priority.

Data as of 10/25/2026, 09:04:00 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.
Exploitation

Not in CISA KEV, no exploitation reported

EPSS
0.5% chance of exploitation in 30 days – higher than 46% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.57.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

What to do

Affected software

ProductAffectedFixed in
Apache Software FoundationApache ArtemisAffected
  • >=2.50.0 <=2.56.0
Fixed in–
Apache Software FoundationApache ActiveMQ ArtemisAffected
  • >=1.0.0 <=2.44.0
Fixed in–
MavenApache Software Foundation/org.apache.artemis:artemis-core-clientpkg:maven/Apache Software Foundation/org.apache.artemis:artemis-core-clientOther threatsAffected
  • >=2.50.0 <=2.56.0
Fixed in–
MavenApache Software Foundation/org.apache.artemis:artemis-serverpkg:maven/Apache Software Foundation/org.apache.artemis:artemis-serverOther threatsAffected
  • >=2.50.0 <=2.56.0
Fixed in–
MavenApache Software Foundation/org.apache.activemq:artemis-core-clientpkg:maven/Apache Software Foundation/org.apache.activemq:artemis-core-clientOther threatsAffected
  • >=1.0.0 <=2.44.0
Fixed in–
MavenApache Software Foundation/org.apache.activemq:artemis-serverpkg:maven/Apache Software Foundation/org.apache.activemq:artemis-serverOther threatsAffected
  • >=1.0.0 <=2.44.0
Fixed in–

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AI-suggested

Users should upgrade to Apache Artemis version 2.57.0 or later, which fixes this vulnerability. No other mitigation or temporary fix is indicated in the available data.

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.

Impact

An unauthenticated attacker can obtain cluster administrative credentials, potentially allowing unauthorized access to cluster administrative functions. This could lead to unauthorized control or disruption of the cluster. The vulnerability affects multiple versions of Apache Artemis and Apache ActiveMQ Artemis prior to 2.57.0.

Weaknesses

References

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