CVE-2026-53917

Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ Client, Apache ActiveMQ Broker: Unbounded memory allocation in OpenWire property unmarshalling

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.

Scores

Faiblesses (CWE)

• CWE-789

Références européennes

• ENISA EUVD · EUVD-2026-40277
• GCVE · GCVE-0-2026-53917

Avis du CERT-FR

• CERTFR-2026-AVI-1206 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
• CERTFR-2026-AVI-1094 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
• CERTFR-2026-AVI-0986 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr

Configurations affectées (CPE NVD)

• cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:* < 5.19.8
• cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:* ≥ 6.0.0 < 6.2.7
• cpe:2.3:a:apache:activemq_broker:*:*:*:*:*:*:*:* < 5.19.8
• cpe:2.3:a:apache:activemq_broker:*:*:*:*:*:*:*:* ≥ 6.0.0 < 6.2.7

Produits affectés

Références

• https://lists.apache.org/thread/grrd1mwgkgblqjbwkkq6dvmdxd9ov2dx
• http://www.openwall.com/lists/oss-security/2026/06/29/14

Sources