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CVE-2026-74761— Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Spoofing of RemoveSubscription clientId

Quick assessment

Affected
Apache Software Foundation Apache ActiveMQ Broker
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.

Apache ActiveMQ 中 TopicRegion 的输入验证不当漏洞描述翻译： Apache ActiveMQ、Apache ActiveMQ Broker 和 Apache ActiveMQ All 中，TopicRegion 存在输入验证不当的问题，影响所有平台。 具体而言，已认证客户端在删除持久化主题订阅时，可以伪造 clientId。 受影响版本： Apache ActiveMQ Broker： 5.19.11 之前；以及 6.0.0 至 6.3.2 之前。 Apache ActiveMQ All

AI Predicted 4.7 Difficulty: Easy
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I. Basic Information for CVE-2026-74761

Vulnerability Information
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Vulnerability Title
Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Spoofing of RemoveSubscription clientId
Source: CVE Program / CVE List V5
Vulnerability Description
Improper input validation in TopicRegion in Apache ActiveMQ, Apache ActiveMQ Broker, and Apache ActiveMQ All on all platforms. An authenticated client can spoof clientId when removing a durable topic subscription. This issue affects Apache ActiveMQ Broker: before 5.19.11, from 6.0.0 before 6.3.2; Apache ActiveMQ All: before 5.19.11, from 6.0.0 before 6.3.2; Apache ActiveMQ: before 5.19.11, from 6.0.0 before 6.3.2. Users are recommended to upgrade to version 6.3.2 or 5.19.11 which fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache ActiveMQ Broker 6.0.0 ~ 6.3.2 -
Apache Software Foundation Apache ActiveMQ All 6.0.0 ~ 6.3.2 -
Apache Software Foundation Apache ActiveMQ 6.0.0 ~ 6.3.2 -

II. Public POCs for CVE-2026-74761

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III. Intelligence Information for CVE-2026-74761

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Other References for CVE-2026-74761 (1)

Same Patch Batch · Apache Software Foundation · 2026-09-09 · 9 CVEs total

CVE-2026-73334 Apache Parquet Hadoop: File-controlled KMS URL is forwarded to pluggable KmsClient that sk
CVE-2026-41871 Apache Nutch: Unauthenticated reflection-based job execution in Nutch Server (Nutch REST A
CVE-2026-41869 Apache Nutch: Unauthenticated forced shutdown and job interruption in Nutch Server (Nutch
CVE-2026-41870 Apache Nutch: Unauthenticated remote code execution (RCE) via JEXL injection in Nutch Serv
CVE-2026-65181 Apache Impala: RCE via External Data Source Class Loading
CVE-2026-57866 Apache Impala: Secrets Exfiltration via SSRF
CVE-2026-56207 Apache Impala: SAML authentication bypass via forged bearer token
CVE-2026-54048 Apache Impala: Avro Schema URL Server-Side Request Forgery

IV. Related Vulnerabilities

Same product: Apache ActiveMQ Broker
Same vendor: Apache Software Foundation
Same weakness: CWE-20

V. Comments for CVE-2026-74761

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