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Apache ActiveMQ default configuration subject to denial of service

CVE-2012-6551GHSA-34fp-xvxp-rg22

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (org.apache.activemq:apache-activemq 5.8.0; org.apache.activemq:activemq-web-demo 5.8.0), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
not scored
EPSS
  • CVE-2012-6551: 7.77% estimated exploitation activity in the next 30 days; percentile 94.65 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

The default configuration of Apache ActiveMQ before 5.8.0 enables a sample web application, which allows remote attackers to cause a denial of service (broker resource consumption) via HTTP requests.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-34fp-xvxp-rg22

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2012-6551

Advisory: Apache ActiveMQ default configuration subject to denial of service
IDs: CVE-2012-6551, GHSA-34fp-xvxp-rg22
Record: https://patchnext.com/advisories/cve-2012-6551 (revision 1, source checked 26 Oct 2026, 16:29 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Unrated
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: org.apache.activemq:apache-activemq 5.8.0; org.apache.activemq:activemq-web-demo 5.8.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.apache.activemq:apache-activemq: affected < 5.8.0; fixed in 5.8.0
- Maven org.apache.activemq:activemq-web-demo: affected < 5.8.0; fixed in 5.8.0

## Suggested inspection (read-only)
- Maven org.apache.activemq:apache-activemq: check the installed version with your package manager.
- Maven org.apache.activemq:activemq-web-demo: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on org.apache.activemq:apache-activemq, org.apache.activemq:activemq-web-demo.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-34fp-xvxp-rg22 (GitHub-reviewed advisory GHSA-34fp-xvxp-rg22 lists affected ranges: Maven org.apache.activemq:apache-activemq >=0 =0 <5.8.0)

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