CVE-2026-84115

HighCVSS 8.3/10Last modified Sep 1, 2026

Description

A vulnerability was found in Cleo Harmony up to 5.8.1.10. The affected element is an unknown function of the file /api/connections of the component JWT Refresh Token Handler. Performing a manipulation of the argument Bearer results in improper privilege management. The attack is possible to be carried out remotely. The exploit has been made public and could be used. Upgrading to version 5.8.1.11 is sufficient to fix this issue. It is recommended to upgrade the affected component.

Metrics

CVSS 3.1 8.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

Weakness enumeration

CWE-266CWE-269

Affected software

VendorProductVersions
CleoHarmony5.8.1.0; 5.8.1.1; 5.8.1.2; 5.8.1.3; 5.8.1.4; 5.8.1.5; 5.8.1.6; 5.8.1.7; 5.8.1.8; 5.8.1.9; 5.8.1.10

References

Timeline

Published
Sep 1, 2026
Last modified
Sep 1, 2026
NVD status
Deferred

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CVE-2026-84115: High severity, CVSS 8.3 | Vulnix