Apache ActiveMQ: Unchecked buffer length can cause excessive memory allocation
Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ.
During unmarshalling of OpenWire commands the size value of buffers was not properly validated which could lead to excessive memory allocation and be exploited to cause a denial of service (DoS) by depleting process memory, thereby affecting applications and services that rely on the availability of the ActiveMQ broker when not using mutual TLS connections. This issue affects Apache ActiveMQ: from 6.0.0 before 6.1.6, from 5.18.0 before 5.18.7, from 5.17.0 before 5.17.7, before 5.16.8. ActiveMQ 5.19.0 is not affected.
Users are recommended to upgrade to version 6.1.6+, 5.19.0+, 5.18.7+, 5.17.7, or 5.16.8 or which fixes the issue.
Existing users may implement mutual TLS to mitigate the risk on affected brokers.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Java / Kotlin (Maven) | org.apache.activemq:activemq-client | < 5.16.8, >= 5.17.0, < 5.17.7, >= 5.18.0, < 5.18.7, >= 6.0.0, < 6.1.6 | 5.16.8, 5.17.7, 5.18.7, 6.1.6 |
| Java / Kotlin (Maven) | org.apache.activemq:activemq-openwire-legacy | < 5.16.8, >= 5.17.0, < 5.17.7, >= 5.18.0, < 5.18.7, >= 6.0.0, < 6.1.6 | 5.16.8, 5.17.7, 5.18.7, 6.1.6 |
Referencias
- https://nvd.nist.gov/vuln/detail/CVE-2025-27533
- https://github.com/apache/activemq/commit/fc4372b9f0f72b8b5eed917f0019c5cea45c5d06
- https://github.com/apache/activemq
- https://issues.apache.org/jira/browse/AMQ-6596
- https://lists.apache.org/thread/8hcm25vf7mchg4zbbhnlx2lc5bs705hg
- https://lists.debian.org/debian-lts-announce/2025/06/msg00020.html
- http://www.openwall.com/lists/oss-security/2025/05/06/1
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Debilidad (CWE)
CWE-789- Plataforma
- Java / Kotlin (Maven)
- Paquete
org.apache.activemq:activemq-client, org.apache.activemq:activemq-openwire-legacy- Publicada
- 07.05.2025
- Actualizado
- 11.10.2026 13:20
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-whxr-3p84-rf3c - CC BY 4.0
Historial de vulnerabilidades: org.apache.activemq:activemq-client
Todas las vulnerabilidades publicadas de este paquete (Java / Kotlin (Maven)), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 18
- Primera → última
- 10.2018 04.2026
- Sin corrección
- 0
- Explotada en ataques
- 2
Distribución por gravedad
- Crítica 4
- Alta 4
- Media 10
Divulgaciones por año
- 2018: 1
- 2019: 2
- 2020: 0
- 2021: 0
- 2022: 11
- 2023: 1
- 2024: 0
- 2025: 1
- 2026: 2
-
Apache ActiveMQ: Unchecked buffer length can cause excessive memory allocation esta entrada
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