CVE-2026-27446

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Source
https://cve.org/CVERecord?id=CVE-2026-27446
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-27446.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-27446
Aliases
Downstream
Published
2026-03-04T09:15:56.837Z
Modified
2026-03-20T12:48:52.171864Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
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:

  • incoming Core protocol connections from untrusted sources to the broker

  • outgoing Core protocol connections from the broker to untrusted targets

This issue affects:

  • Apache Artemis from 2.50.0 through 2.51.0

  • Apache ActiveMQ Artemis from 2.11.0 through 2.44.0.

Users are recommended to upgrade to Apache Artemis version 2.52.0, which fixes the issue.

The issue can be mitigated by one of the following:

  • 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.

  • 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.

  • 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 .

References

Affected packages

Git / github.com/apache/activemq-artemis

Affected ranges

Type
GIT
Repo
https://github.com/apache/activemq-artemis
Events
Introduced
25a947f6cba5b492d567a03df5d7a7a9dc2bdc7d
Last affected
437105493d75b6156ba7bb1f77bae93de2182e30
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
0ae68ef46e4e12ae251cdebaa047f53b7bb78aff
Database specific 
{
    "versions": [
        {
            "introduced": "2.11.0"
        },
        {
            "last_affected": "2.44.0"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.50.0"
        }
    ]
}

Affected versions

2.*
2.11.0
2.12.0
2.13.0
2.14.0
2.15.0
2.16.0
2.17.0
2.18.0
2.19.0
2.20.0
2.21.0
2.22.0
2.23.0
2.24.0
2.25.0
2.26.0
2.27.0
2.28.0
2.29.0
2.30.0
2.31.0
2.31.1
2.31.2
2.32.0
2.33.0
2.34.0
2.35.0
2.36.0
2.37.0
2.38.0
2.39.0
2.40.0
2.41.0
2.42.0
2.43.0
2.44.0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-27446.json"