{
  "threat_severity" : "Important",
  "public_date" : "2026-03-04T06:06:00Z",
  "bugzilla" : {
    "description" : "org.apache.artemis:artemis-server: org.apache.activemq:artemis-server: Apache Artemis, Apache ActiveMQ Artemis: Message injection and exfiltration due to missing authentication",
    "id" : "2444320",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2444320"
  },
  "cvss3" : {
    "cvss3_base_score" : "9.1",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
    "status" : "verified"
  },
  "cwe" : "CWE-306",
  "details" : [ "Missing Authentication for Critical Function (CWE-306) vulnerability in Apache Artemis, Apache ActiveMQ Artemis. An unauthenticated remote attacker can use the Core protocol to force a target broker to establish an outbound Core federation connection to an attacker-controlled rogue broker. This could potentially result in message injection into any queue and/or message exfiltration from any queue via the rogue broker. This impacts environments that allow both:\n- incoming Core protocol connections from untrusted sources to the broker\n- outgoing Core protocol connections from the broker to untrusted targets\nThis issue affects:\n- Apache Artemis from 2.50.0 through 2.51.0\n- Apache ActiveMQ Artemis from 2.11.0 through 2.44.0.\nUsers are recommended to upgrade to Apache Artemis version 2.52.0, which fixes the issue.\nThe issue can be mitigated by one of the following:\n- Remove Core protocol support from any acceptor receiving connections from untrusted sources. Incoming Core protocol connections are supported by default via the \"artemis\" acceptor listening on port 61616. See the \"protocols\" URL parameter configured for the acceptor. An acceptor URL without this parameter supports all protocols by default, including Core.\n- Use two-way SSL (i.e. certificate-based authentication) in order to force every client to present the proper SSL certificate when establishing a connection before any message protocol handshake is attempted. This will prevent unauthenticated exploitation of this vulnerability.\n- Implement and deploy a Core interceptor to deny all Core downstream federation connect packets. Such packets have a type of (int) -16 or (byte) 0xfffffff0. Documentation for interceptors is available at  https://artemis.apache.org/components/artemis/documentation/latest/intercepting-operations.html .", "A flaw was found in Apache Artemis and Apache ActiveMQ Artemis. An unauthenticated remote attacker can exploit a missing authentication for critical function vulnerability by using the Core protocol. This allows the attacker to force a target broker to establish an outbound Core federation connection to an attacker-controlled rogue broker. The primary consequence is the potential for message injection into any queue and/or message exfiltration from any queue via the rogue broker." ],
  "statement" : "This IMPORTANT vulnerability in Apache Artemis and Apache ActiveMQ Artemis allows an unauthenticated remote attacker to inject or exfiltrate messages by forcing a target broker to establish an outbound Core federation connection to an attacker-controlled rogue broker.",
  "affected_release" : [ {
    "product_name" : "Red Hat AMQ Broker 7.12.6",
    "release_date" : "2026-03-05T00:00:00Z",
    "advisory" : "RHSA-2026:3955",
    "cpe" : "cpe:/a:redhat:amq_broker:7.12",
    "package" : "artemis-server"
  }, {
    "product_name" : "Red Hat AMQ Broker 7.13.4",
    "release_date" : "2026-03-06T00:00:00Z",
    "advisory" : "RHSA-2026:3957",
    "cpe" : "cpe:/a:redhat:amq_broker:7.13",
    "package" : "artemis-server"
  }, {
    "product_name" : "Red Hat build of Apache Camel 4.18.1 for Spring Boot 3.5.14",
    "release_date" : "2026-05-14T00:00:00Z",
    "advisory" : "RHSA-2026:17668",
    "cpe" : "cpe:/a:redhat:apache_camel_spring_boot:4.18",
    "package" : "artemis-server"
  }, {
    "product_name" : "Red Hat JBoss Enterprise Application Platform 8.1",
    "release_date" : "2026-05-18T00:00:00Z",
    "advisory" : "RHSA-2026:18059",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9",
    "package" : "artemis-server"
  }, {
    "product_name" : "Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8",
    "release_date" : "2026-05-18T00:00:00Z",
    "advisory" : "RHSA-2026:18054",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el8",
    "package" : "eap8-activemq-artemis-0:2.40.0-6.redhat_00012.1.el8eap"
  }, {
    "product_name" : "Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9",
    "release_date" : "2026-05-18T00:00:00Z",
    "advisory" : "RHSA-2026:18055",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9",
    "package" : "eap8-activemq-artemis-0:2.40.0-6.redhat_00012.1.el9eap"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat AMQ Clients",
    "fix_state" : "Not affected",
    "package_name" : "artemis-server",
    "cpe" : "cpe:/a:redhat:amq_clients:2023"
  }, {
    "product_name" : "Red Hat build of OptaPlanner 8",
    "fix_state" : "Will not fix",
    "package_name" : "artemis-server",
    "cpe" : "cpe:/a:redhat:optaplanner:::el6"
  }, {
    "product_name" : "Red Hat Fuse 7",
    "fix_state" : "Will not fix",
    "package_name" : "artemis-server",
    "cpe" : "cpe:/a:redhat:jboss_fuse:7"
  }, {
    "product_name" : "Red Hat JBoss Enterprise Application Platform 7",
    "fix_state" : "Will not fix",
    "package_name" : "artemis-server",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_application_platform:7"
  }, {
    "product_name" : "Red Hat JBoss Enterprise Application Platform Expansion Pack",
    "fix_state" : "Not affected",
    "package_name" : "artemis-server",
    "cpe" : "cpe:/a:redhat:jbosseapxp"
  }, {
    "product_name" : "Red Hat OpenShift Dev Spaces",
    "fix_state" : "Not affected",
    "package_name" : "devspaces/dashboard-rhel9",
    "cpe" : "cpe:/a:redhat:openshift_devspaces:3"
  }, {
    "product_name" : "Red Hat OpenShift Dev Spaces",
    "fix_state" : "Not affected",
    "package_name" : "devspaces/devspaces-operator-bundle",
    "cpe" : "cpe:/a:redhat:openshift_devspaces:3"
  }, {
    "product_name" : "Red Hat Process Automation 7",
    "fix_state" : "Affected",
    "package_name" : "artemis-server",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_bpms_platform:7"
  }, {
    "product_name" : "Red Hat Satellite 6",
    "fix_state" : "Not affected",
    "package_name" : "candlepin",
    "cpe" : "cpe:/a:redhat:satellite:6"
  }, {
    "product_name" : "Red Hat Satellite 6",
    "fix_state" : "Not affected",
    "package_name" : "satellite:el8/candlepin",
    "cpe" : "cpe:/a:redhat:satellite:6"
  }, {
    "product_name" : "Red Hat Single Sign-On 7",
    "fix_state" : "Not affected",
    "package_name" : "artemis-server",
    "cpe" : "cpe:/a:redhat:red_hat_single_sign_on:7"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-27446\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-27446\nhttps://lists.apache.org/thread/jwpsdc8tdxotm98od8n8n30fqlzoc8gg" ],
  "name" : "CVE-2026-27446",
  "mitigation" : {
    "value" : "To mitigate this issue, restrict Core protocol support on acceptors receiving connections from untrusted sources. The default \"artemis\" acceptor on port 61616 supports all protocols, including Core. Modify the acceptor URL to explicitly exclude the Core protocol using the \"protocols\" URL parameter. Alternatively, configure two-way SSL with certificate-based authentication to prevent unauthenticated exploitation. A service restart or reload may be required for changes to take effect.",
    "lang" : "en:us"
  },
  "csaw" : false
}