- Description
- Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Client, Apache ActiveMQ Broker. An authenticated user can cause a broker DoS by sending a crafted OpenWire Message with a large encoded size value for the map. OpenWire message property maps are unmarshaled without size validation which can trigger OOM and crash the broker. This issue affects Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ All: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Client: before 5.19.8, from 6.0.0 before 6.2.7; Apache ActiveMQ Broker: before 5.19.8, from 6.0.0 before 6.2.7. Users are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue.
- Source
- security@apache.org
- NVD status
- Analyzed
- Products
- activemq, activemq_broker
CVSS 3.1
- Type
- Secondary
- Base score
- 7.5
- Impact score
- 3.6
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity
- HIGH
- security@apache.org
- CWE-789
- Hype score
- Not currently trending
🚨 Three vulnerabilities disclosed in Apache ActiveMQ expose messaging infrastructure to DoS attacks, broken isolation, and unauthorized admin access. Patch now: 🔹 CVE-2026-53917: crafted OpenWire message can crash the broker (OOM) 🔹 CVE-2026-54475: connections can read
@techepages
3 Jul 2026
40 Impressions
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Apache ActiveMQ users face critical vulnerabilities (CVE-2026-53917, CVE-2026-54475, CVE-2026-49877) leading to DoS attacks and unauthorized access. Immediate updates to versions 6.2.7 or 5.19.8 are essential to secure messaging infrastructures. #ApacheActiveMQ #CyberSecurity ht
@dailytechonx
3 Jul 2026
52 Impressions
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CVE-2026-53917 CVE-2026-53917 https://t.co/ytwIQXZQ3Z
@VulmonFeeds
30 Jun 2026
84 Impressions
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