CVE-2026-34197: Apache ActiveMQ Improper Input Validation Vulnerability

Added to the CISA Known Exploited Vulnerabilities catalog on 16 Apr 2026. Vendor: Apache. Product: ActiveMQ.

Apache ActiveMQ contains an improper input validation vulnerability that allows for code injection.

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. (due 30 Apr 2026)