AUGUST 26, 2026
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Case File

CVE-2026-53917

HIGH · CVSS 7.5 EPSS 1.18%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-06-30 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. It affects Apache. Exploitation may require the attacker to be authenticated.

CVE
CVE-2026-53917
Severity
HIGH
CVSS
7.5
EPSS
1.18%
Apache

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)