Apache Artemis, Apache ActiveMQ Artemis: Pre-Authentication Information Disclosure in CORE Protocol Topology Subscription
Summary
| CVE | CVE-2026-49363 |
|---|---|
| State | PUBLISHED |
| Assigner | apache |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-10 05:17:01 UTC |
| Updated | 2026-09-10 06:17:05 UTC |
| Description | An unauthenticated remote attacker connecting with the CORE protocol can discover cluster node details by sending a SUBSCRIBE_TOPOLOGY request prior to authentication. 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. |
Risk And Classification
Problem Types: CWE-306 | CWE-306 CWE-306 Missing authentication for critical function
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Apache Software Foundation | Apache Artemis | affected 2.50.0 2.56.0 semver | Not specified |
| CNA | Apache Software Foundation | Apache ActiveMQ Artemis | affected 1.0.0 2.44.0 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.openwall.com/lists/oss-security/2026/09/10/2 | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | |
| lists.apache.org/thread/syjch88zw6pfdoso9vs46m23xkgxjbxo | [email protected] | lists.apache.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Domenico Francesco Bruscino (en)
There are currently no legacy QID mappings associated with this CVE.