Public vulnerability disclosure

CVE-2026-111822

Apache ActiveMQ, Apache ActiveMQ Runtime Config: ActiveMQ retains write access after live ACL revocation

published

Improper invalidation of cached authorizations vulnerability in Apache ActiveMQ, Apache ActiveMQ Runtime Config. After the runtime configuration plugin removes a principal's write grant on a destination, an authenticated connection opened before the change can keep sending to that destination, including through a new anonymous producer, while fresh connections and new explicit producers are denied. This issue affects Apache ActiveMQ: from 6.0.0 before 6.3.3, before 5.19.12; Apache ActiveMQ Runtime Config: from 6.0.0 before 6.3.3, before 5.19.12. Users are recommended to upgrade to version 6.4.0, 6.3.3 or 5.19.12, which fixes the issue.

Technical severityUnscoredNo score in collected sources
Published2026-11-04Source updated 2026-11-04
Collected2026-11-042 attributed sources

Fixes and workarounds

No remediation reported in collected sources.

Missing remediation information is not evidence that no patch exists.

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
Apache ActiveMQ
Apache Software Foundation
org.apache.activemq:apache-activemq
maven
≥ 6.0.0; < 6.3.3 (affected, semver)
≥ 0; < 5.19.12 (affected, semver)
Other versions: unaffected
CNA: apache
Apache ActiveMQ Runtime Config
Apache Software Foundation
org.apache.activemq:activemq-runtime-config
maven
≥ 6.0.0; < 6.3.3 (affected, semver)
≥ 0; < 5.19.12 (affected, semver)
Other versions: unaffected
CNA: apache

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

No CVSS assessment reported. An unscored record is not a low-severity determination.

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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