CVE-2025-27533 – org.apache.activemq:activemq-client

Package

Manager: maven
Name: org.apache.activemq:activemq-client
Vulnerable Version: >=0 <5.16.8 || >=5.17.0 <5.17.7 || >=5.18.0 <5.18.7 || >=6.0.0 <6.1.6

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/AU:Y/R:A/V:D/RE:M/U:Red

EPSS: 0.00533 pctl0.66401

Details

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.

Metadata

Created: 2025-05-07T09:31:19Z
Modified: 2025-07-16T21:02:42Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/05/GHSA-whxr-3p84-rf3c/GHSA-whxr-3p84-rf3c.json
CWE IDs: ["CWE-789"]
Alternative ID: GHSA-whxr-3p84-rf3c
Finding: F184
Auto approve: 1