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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是美国Apache基金会开源的一套开源的消息中间件,它支持Java消息服务、集群、Spring Framework等。 Apache ActiveMQ、Apache ActiveMQ Broker和Apache ActiveMQ All的5.19.11之前版本和6.0.0至6.3.2之前版本存在输入验证错误漏洞，该漏洞源于TopicRegion输入验证不当，已认证客户端在删除持久主题订阅时可伪造clientId。

AI Predicted 4.7 Difficulty: Easy EPSS 0.62% · P49

Affected Version Matrix 6

VendorProduct Version RangeStatus
Apache Software Foundation Apache ActiveMQ 6.0.0< 6.3.2 affected
< 5.19.11 affected
Apache Software Foundation Apache ActiveMQ All 6.0.0< 6.3.2 affected
< 5.19.11 affected
Apache Software Foundation Apache ActiveMQ Broker 6.0.0< 6.3.2 affected
< 5.19.11 affected
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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
Vulnerability Title
Apache ActiveMQ 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache ActiveMQ是美国Apache基金会开源的一套开源的消息中间件,它支持Java消息服务、集群、Spring Framework等。 Apache ActiveMQ、Apache ActiveMQ Broker和Apache ActiveMQ All的5.19.11之前版本和6.0.0至6.3.2之前版本存在输入验证错误漏洞，该漏洞源于TopicRegion输入验证不当，已认证客户端在删除持久主题订阅时可伪造clientId。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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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Mailing List Discussions for CVE-2026-74761 (1)

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

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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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