🚨 CVE-2026-84114
A vulnerability has been found in Cleo Harmony up to 5.8.1.10. Impacted is the function LocalUserUtil.getNativeUserByAssertions of the component SAML Authentication. Such manipulation of the argument Email leads to improper authentication. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 5.8.1.11 is recommended to address this issue. Upgrading the affected component is recommended.
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Cleo
Cleo Harmony® 5.8.1 Release Notes
Important:Cleo product patches often contain security-strengthening capability enhancements and updates. We strongly recommend that customers remain on the latest product version and apply updates ...
September 1, 2026 31
