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Response snapshot Nov 5, 2026, 23:11 UTC

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VulnerabilityCVE-2026-54475

Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ have a Missing Authorization vulnerability

Missing Authorization vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ. Apache ActiveMQ Classic temporary destinations are expected to be isolated to the connection that created them.

At a glance

Exploited
Not known
Severity
7.5 High (CVSS 3.1)
Chance of exploitation
0.6% in the next 30 days
Sources
1 source

What to do

GitHub lists first patched versions: org.apache.activemq:activemq-broker: 5.19.8; org.apache.activemq:activemq-broker: 6.2.7; org.apache.activemq:activemq-all: 5.19.8; org.apache.activemq:activemq-all: 6.2.7; org.apache.activemq:apache-activemq: 5.19.8; org.apache.activemq:apache-activemq: 6.2.7. Confirm the affected range and upgrade guidance in the exact advisory.

Read GitHub-reviewed advisory GHSA-mhp6-f224-j2c3 (opens a new tab)

What happened

Missing Authorization vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ.

Apache ActiveMQ Classic temporary destinations are expected to be isolated to the connection that created them. The isolation can be broken as this is only checked in the client, allowing a different connection to consume from another connection's temporary destination. This issue affects Apache ActiveMQ Broker: 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; Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7.

Users are recommended to upgrade to version 6.2.7, which fixes the issue.

Affected package ranges reported by GitHub: org.apache.activemq:activemq-broker: < 5.19.8 org.apache.activemq:activemq-broker: >= 6.0.0, < 6.2.7 org.apache.activemq:activemq-all: < 5.19.8 org.apache.activemq:activemq-all: >= 6.0.0, < 6.2.7 org.apache.activemq:apache-activemq: < 5.19.8 org.apache.activemq:apache-activemq: >= 6.0.0, < 6.2.7

Scores and how they were measured

CVSS base severity

7.5

Version 3.1As of

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

Measurement source (opens a new tab)

How bad it is if exploited. Not a prediction of exploitation or proof you are exposed.

EPSS probability

0.6%

Scored Percentile 47.0%

Model and measurement source (opens a new tab)

A model's estimate of exploitation in the next 30 days, not certainty or your own risk.

Related technology

Sources

  1. Primary source

    GitHub-reviewed advisory GHSA-mhp6-f224-j2c3 (opens a new tab)

    The public advisory supplies the description, affected package/version ranges, and any listed CVSS metric. GitHub review is not local review.

    Published Checked

  2. Primary source

    GitHub public advisory API page (opens a new tab)

    The API page supplied GHSA-mhp6-f224-j2c3, its actual identifiers, source dates, and structured metrics.

    Published Date not suppliedChecked

  3. Primary source

    FIRST measured EPSS score (opens a new tab)

    Measured EPSS probability and percentile for CVE-2026-54475, scored 2026-11-05. This is a model estimate, not proof of exposure.

    Published Checked

Cite this record

For factual claims, cite the primary sources above; cite KEVWire for its compilation, dates, and classifications.

APA

KEVWire. (2026, November 5). Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ have a Missing Authorization vulnerability (CVE-2026-54475). https://kevwire.com/record/CVE-2026-54475

MLA

"Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ have a Missing Authorization vulnerability (CVE-2026-54475)." KEVWire, 5 Nov. 2026, kevwire.com/record/CVE-2026-54475.

Chicago

KEVWire. "Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ have a Missing Authorization vulnerability (CVE-2026-54475)." Last modified November 5, 2026. https://kevwire.com/record/CVE-2026-54475.

Evidence summary (plain text)

Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ have a Missing Authorization vulnerability (Jun 30, 2026).
Missing Authorization vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ.

Apache ActiveMQ Classic temporary destinations are expected to be isolated to the connection that created them. The isolation can be broken as this is only checked in the client, allowing a different connection to consume from another connection's temporary
destination.
This issue affects Apache ActiveMQ Broker: 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; Apache ActiveMQ: before 5.19.8, from 6.0.0 before 6.2.7.
CVSS 7.5 (version 3.1; evidence as of Nov 5, 2026; https://github.com/advisories/GHSA-mhp6-f224-j2c3).
EPSS 0.6% for the following 30 days, scored Nov 5, 2026 (https://api.first.org/data/v1/epss?cve=CVE-2026-54475&date=2026-11-05).
Sources:
GitHub-reviewed advisory GHSA-mhp6-f224-j2c3: https://github.com/advisories/GHSA-mhp6-f224-j2c3
GitHub public advisory API page: https://api.github.com/advisories?type=reviewed&per_page=100&sort=updated&direction=desc
FIRST measured EPSS score: https://api.first.org/data/v1/epss?cve=CVE-2026-54475&date=2026-11-05
Record ID: CVE-2026-54475.
Record origin: Ingested record.
AI evidence: Not assessed.
Known exploitation: Not assessed.
Zero-day status: Not assessed. KEV membership alone does not establish zero-day status.
About this data

This record was ingested from a data source. Retrieved: Nov 5, 2026, 19:11 UTC. Ingestion is not an independent editorial investigation.

A CISA KEV listing documents known exploitation, not necessarily a zero-day; absence from the catalog does not prove a vulnerability has never been exploited.

Technology tags indicate possible relevance, not verified exposure. Confirm the affected product, version, and configuration against your own inventory; KEVWire does not scan your systems.

A personal reading checklist on this device, not verified remediation.

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