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CVE-2026-49364— Apache Artemis, Apache Artemis, Apache ActiveMQ Artemis, Apache ActiveMQ Artemis: Pre-Authentication Cluster Credential Exposure to Discovered Peers

Quick assessment

Affected
Apache Software Foundation Apache Artemis
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

未经身份验证的邻近网络攻击者可以利用发现（discovery）机制，在集群初始连接握手过程中捕获集群管理凭据。 此问题影响以下版本： Apache Artemis：2.50.0 至 2.56.0； Apache ActiveMQ Artemis：1.0.0 至 2.44.0。 建议用户升级到 2.57.0 版本，该版本已修复此问题。

AI Predicted 5.5 Difficulty: Moderate
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I. Basic Information for CVE-2026-49364

Vulnerability Information
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Vulnerability Title
Apache Artemis, Apache Artemis, Apache ActiveMQ Artemis, Apache ActiveMQ Artemis: Pre-Authentication Cluster Credential Exposure to Discovered Peers
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Artemis 2.50.0 ~ 2.56.0 -
Apache Software Foundation Apache Artemis 2.50.0 ~ 2.56.0 -
Apache Software Foundation Apache ActiveMQ Artemis 1.0.0 ~ 2.44.0 -
Apache Software Foundation Apache ActiveMQ Artemis 1.0.0 ~ 2.44.0 -

II. Public POCs for CVE-2026-49364

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III. Intelligence Information for CVE-2026-49364

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Mailing List Discussions for CVE-2026-49364 (1)

Same Patch Batch · Apache Software Foundation · 2026-09-10 · 11 CVEs total

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CVE-2026-84939 Apache FreeMarker, Apache FreeMarker: A malformed locale may be exploitable for path trave
CVE-2026-49362 Apache Artemis, Apache ActiveMQ Artemis: Missing Authentication in CORE Protocol Handler A
CVE-2026-49363 Apache Artemis, Apache ActiveMQ Artemis: Pre-Authentication Information Disclosure in CORE
CVE-2026-57822 Apache Artemis, Apache ActiveMQ Artemis: Message-based management parameter deserializatio
CVE-2026-57967 Apache Artemis, Apache ActiveMQ Artemis: Missing authentication on CORE protocol session r
CVE-2026-67593 Apache Artemis, Apache Artemis, Apache ActiveMQ Artemis, Apache ActiveMQ Artemis: Pre-auth
CVE-2026-75880 Apache Artemis, Apache ActiveMQ Artemis: Message selector wildcard handling could lead to

IV. Related Vulnerabilities

Same product: Apache Artemis
Same vendor: Apache Software Foundation
Same weakness: CWE-306

V. Comments for CVE-2026-49364

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