CVE-2026-49877 Apache ActiveMQ: Authenticated web users retain admin access by default in the Web Console

What is CVE-2026-49877?

CVE-2026-49877 is a high-severity missing authorization vulnerability in Apache Activemq, published on 30 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Improper Authorization vulnerability in Apache ActiveMQ.

An authenticated low-privilege Web Console user by default can access /admin/* paths in the Web Console. The default Jetty settings incorrectly did not limit those paths to only admins. This issue affects Apache ActiveMQ: 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.

Weakness: CWE-285

Which versions are affected by CVE-2026-49877?

1 open source package ship an affected version, including activemq. It affects 1 product.

Products include Apache Activemq.

How do I fix CVE-2026-49877?

Upgrade activemq to a fixed version for your release line: 5.19.8 or 6.2.7.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-49877 being exploited?

There is no known exploitation of CVE-2026-49877 in the wild and no public exploit code.

Other vulnerabilities in Apache Activemq

• CVE-2023-46604 Apache ActiveMQ Deserialization of Untrusted Data Exploited Critical 10.0
• CVE-2016-3088 Apache ActiveMQ Improper Input Validation Exploited Critical 9.8
• CVE-2026-34197 Apache ActiveMQ Improper Input Validation Exploited High 8.8
• CVE-2020-11998 Remote code execution in Apache ActiveMQ Critical 9.8
• CVE-2013-7285 Command Injection in Xstream Critical 9.8

All Apache Activemq vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-activemq-2026-49877, DEBIAN-CVE-2026-49877, GHSA-f892-4h9f-j7g9, MINI-2g65-v8r6-28mm, MINI-4qvh-2p7h-5978, MINI-v3x3-9pxm-9p6c and 2 more.