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CVE-2026-61487: Improper Authorization vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ. An aut

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Routine
MEDIUM 6.5WATCHLISTUPGRADEUPGRADEUPGRADE

CVE-2026-61487 is a medium-severity flaw (CVSS 6.5) affecting activemq, activemq all, activemq broker. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper Authorization vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ. An authenticated low-privilege user can bypass a per-destination write ACL by sending to an ActiveMQ temporary composite destination whose physical name is a comma-separated composite of real queues. This allows publishing messages to any of the destinations in the list without proper write ACL permissions because the authorization check is byp

Why this priority

  • On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score6.5 (Medium)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance0.5% (top 61%)
CISA exploited listNo
WeaknessCWE-285
Published2026-07-28
Last modified2026-08-05
Publisher (CNA): Apache Software Foundation · Vendor: apache

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Last updated 2026-08-05 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

apache activemq UPGRADE
Affected: < 5.19.9 · >= 6.0.0 and < 6.2.8
Fixed in: 5.19.9, 6.2.8
Safe to downgrade to: a release before 6.0.0
1. Check installed version
apt-cache policy activemq || rpm -q activemq || activemq --version
2. UPGRADE to 5.19.9 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade activemq
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade activemq
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 6.0.0 (Debian / Ubuntu)
apt-cache madison activemq sudo apt install activemq=<VERSION_BEFORE_6.0.0> sudo apt-mark hold activemq
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list activemq sudo dnf downgrade activemq-<VERSION_BEFORE_6.0.0> sudo dnf versionlock add activemq
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
apache activemq all UPGRADE
Affected: < 5.19.9 · >= 6.0.0 and < 6.2.8
Fixed in: 5.19.9, 6.2.8
Safe to downgrade to: a release before 6.0.0
1. Check installed version
apt-cache policy activemq-all || rpm -q activemq-all || activemq-all --version
2. UPGRADE to 5.19.9 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade activemq-all
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade activemq-all
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 6.0.0 (Debian / Ubuntu)
apt-cache madison activemq-all sudo apt install activemq-all=<VERSION_BEFORE_6.0.0> sudo apt-mark hold activemq-all
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list activemq-all sudo dnf downgrade activemq-all-<VERSION_BEFORE_6.0.0> sudo dnf versionlock add activemq-all
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
apache activemq broker UPGRADE
Affected: < 5.19.9 · >= 6.0.0 and < 6.2.8
Fixed in: 5.19.9, 6.2.8
Safe to downgrade to: a release before 6.0.0
1. Check installed version
apt-cache policy activemq-broker || rpm -q activemq-broker || activemq-broker --version
2. UPGRADE to 5.19.9 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade activemq-broker
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade activemq-broker
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 6.0.0 (Debian / Ubuntu)
apt-cache madison activemq-broker sudo apt install activemq-broker=<VERSION_BEFORE_6.0.0> sudo apt-mark hold activemq-broker
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list activemq-broker sudo dnf downgrade activemq-broker-<VERSION_BEFORE_6.0.0> sudo dnf versionlock add activemq-broker
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-61487?

activemq: upgrade to 5.19.9, 6.2.8; activemq all: upgrade to 5.19.9, 6.2.8; activemq broker: upgrade to 5.19.9, 6.2.8. Exact commands for each OS are on this page.

Is CVE-2026-61487 being exploited?

CVE-2026-61487 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-61487 affect?

CVE-2026-61487 affects activemq, activemq all, activemq broker. Severity is medium (CVSS 6.5). Improper Authorization vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ. An authenticated low-privilege user can bypass a per-destination write ACL by sending to an ActiveMQ temporary composite destination who

How urgent is CVE-2026-61487?

Priority 38/100. On your watchlist

Software pages

Apache ActiveMQ vulnerabilities

Related CVEs

References

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