Cleo Harmony — Cyber Threats, Attacks & Incidents

Threat entity extracted from intelligence sources

Frequency
2
occurrences
First Seen
September 2, 2026
Last Seen
September 2, 2026

Related Threat Clusters

  • Critical Cleo Harmony Vulnerability Exploited

    A new authentication bypass vulnerability, tracked as CVE-2026-84115, has been discovered in the Cleo Harmony file transfer application. This flaw affects the JWT refresh token logic, allowing remote attackers to…

    2 articles · Updated September 2, 2026

Recent Intelligence Reports

  • Exploit Published for Fresh Cleo Harmony Vulnerability — Securityweek · September 2, 2026
  • Exploit Published for Fresh Cleo Harmony Vulnerability — Feeds.Feedburner · September 2, 2026

CVSS v3.1 Breakdown