Risk Letters

Exploited vulnerability

CVE-2026-34197

TLP:CLEAR

Apache ActiveMQ Improper Input Validation Vulnerability

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

Facts

  • Vendor: Apache
  • Product: ActiveMQ
  • CVSS: 8.8
  • EPSS (probability of exploitation within 30 days): 98.3 %
  • On CISA's Known Exploited Vulnerabilities list since: 16 April 2026
  • First known exploitation: 16 April 2026
  • CISA's deadline for US federal agencies: 30 April 2026
  • Weakness: CWE-20
  • First seen by Risk Letters: 16 April 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD