Apache ActiveMQ vulnerabilities and fixes

CVEs that mention Apache ActiveMQ, ranked by priority. 2 tracked.

Apache ActiveMQ has 2 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 1. Most recent: 2026-06-30. Highest priority: CVE-2026-40046 (score 44/100).

• CVE-2026-40046 HIGH 7.5 Integer Overflow or Wraparound vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ MQTT. T
• CVE-2026-49877 HIGH 8.1 UPGRADE Improper Authorization vulnerability in Apache ActiveMQ. An authenticated low-privilege Web Console user by d

FAQ

How do I fix Apache ActiveMQ vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is Apache ActiveMQ being exploited right now?

None of the tracked Apache ActiveMQ CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which Apache ActiveMQ CVE should I patch first?

CVE-2026-40046 currently ranks highest (44/100): Integer Overflow or Wraparound vulnerability in Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ MQTT. T.

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