GHSA-whxr-3p84-rf3c
Apache ActiveMQ: Unchecked buffer length can cause excessive memory allocation
At a glance
- Published
- Updated
- CVE
- CVE-2025-27533
- Aliases
- BIT-activemq-2025-27533
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS_V4
- 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
Description
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.
Affected packages
| Package | Versions |
|---|---|
| Maven · org.apache.activemq:activemq-openwire-legacy | introduced 0, fixed 5.16.8 |
| Maven · org.apache.activemq:activemq-client | introduced 0, fixed 5.16.8 |
| Maven · org.apache.activemq:activemq-openwire-legacy | introduced 5.17.0, fixed 5.17.7 |
| Maven · org.apache.activemq:activemq-openwire-legacy | introduced 5.18.0, fixed 5.18.7 |
| Maven · org.apache.activemq:activemq-openwire-legacy | introduced 6.0.0, fixed 6.1.6 |
| Maven · org.apache.activemq:activemq-client | introduced 5.17.0, fixed 5.17.7 |
| Maven · org.apache.activemq:activemq-client | introduced 5.18.0, fixed 5.18.7 |
| Maven · org.apache.activemq:activemq-client | introduced 6.0.0, fixed 6.1.6 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-27533 ADVISORY
- https://github.com/apache/activemq/commit/fc4372b9f0f72b8b5eed917f0019c5cea45c5d06 WEB
- https://github.com/apache/activemq PACKAGE
- https://issues.apache.org/jira/browse/AMQ-6596 WEB
- https://lists.apache.org/thread/8hcm25vf7mchg4zbbhnlx2lc5bs705hg WEB
- https://lists.debian.org/debian-lts-announce/2025/06/msg00020.html WEB
- http://www.openwall.com/lists/oss-security/2025/05/06/1 WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |