Apache ActiveMQ is Vulnerable to Integer Overflow or Wraparound
Apache ActiveMQ does not properly validate the remaining length field which may lead to an overflow during the decoding of malformed packets. When this integer overflow occurs, ActiveMQ may incorrectly compute the total Remaining Length and subsequently misinterpret the payload as multiple MQTT control packets which makes the broker susceptible to unexpected behavior when interacting with non-compliant clients. This behavior violates the MQTT v3.1.1 specification, which restricts Remaining Length to a maximum of 4 bytes. The scenario occurs on established connections after the authentication process. Brokers that are not enabling mqtt transport connectors are not impacted.
This issue affects Apache ActiveMQ: before 5.19.2, 6.0.0 to 6.1.8, and 6.2.0
Users are recommended to upgrade to version 5.19.2, 6.1.9, or 6.2.1, which fixes the issue.
Software afectado
Haz clic en una tecnología para ver todas sus vulnerabilidades.
| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Java / Kotlin (Maven) | org.apache.activemq:activemq-all | < 5.19.2, >= 6.0.0, < 6.1.9, >= 6.2.0, < 6.2.1 | 5.19.2, 6.1.9, 6.2.1 |
| Java / Kotlin (Maven) | org.apache.activemq:activemq-mqtt | < 5.19.2, >= 6.0.0, < 6.1.9, >= 6.2.0, < 6.2.1 | 5.19.2, 6.1.9, 6.2.1 |
| Java / Kotlin (Maven) | org.apache.activemq:apache-activemq | < 5.19.2, >= 6.0.0, < 6.1.9, >= 6.2.0, < 6.2.1 | 5.19.2, 6.1.9, 6.2.1 |
Referencias
- https://nvd.nist.gov/vuln/detail/CVE-2025-66168
- https://activemq.apache.org/security-advisories.data/CVE-2026-40046-announcement.txt
- https://github.com/apache/activemq
- https://lists.apache.org/thread/13n8mkrb2jf2y6yyhpgrkmpqcm7djyto
- https://www.cve.org/CVERecord?id=CVE-2026-40046
- http://www.openwall.com/lists/oss-security/2026/03/03/5
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N- Debilidad (CWE)
CWE-190- Plataforma
- Java / Kotlin (Maven)
- Paquete
org.apache.activemq:activemq-all, org.apache.activemq:activemq-mqtt, org.apache.activemq:apache-activemq- Publicada
- 04.03.2026
- Actualizado
- 11.10.2026 13:20
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-c825-6ph3-4h84 - CC BY 4.0
Historial de vulnerabilidades: org.apache.activemq:apache-activemq
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
- 15
- Primera → última
- 05.2022 06.2026
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Alta 8
- Media 7
Divulgaciones por año
- 2022: 1
- 2023: 1
- 2024: 1
- 2025: 0
- 2026: 12
-
Apache ActiveMQ is Vulnerable to Integer Overflow or Wraparound esta entrada
Identifica las vulnerabilidades de tu aplicación
Con la integración de DockRay y el inventario de software activado, DockRay compara las versiones notificadas de los componentes con las vulnerabilidades conocidas y avisa de las coincidencias confirmadas. La cobertura depende de la tecnología compatible y de los avisos disponibles.