CVE-2026-34197
Improper Input Validation in Apache ActiveMQ. CISA confirmed attackers exploit it and added it to its Known Exploited Vulnerabilities catalog on 16 April 2026.
- Product
- Apache ActiveMQ
- Added to CISA's catalog
- Federal fix-by date
- Ransomware
- No known use in ransomware campaigns
- Sources
- CISA’s catalog, NVD entry
CISA’s description.
Apache ActiveMQ contains an improper input validation vulnerability that allows for code injection.
More from Apache this year.
- CVE-2016-3081 Command Injection, added
- CVE-2026-34486 Missing Encryption of Sensitive Data, added
Every flaw CISA confirmed exploited in the last 30 days is on the exploit watch. This is not security advice. Check the vendor’s advisory before acting. From CISA’s catalog of 4 November 2026.