CVE-2026-92860: Rcourtman Pulse

Critical severity, CVSS 9.1. EPSS: 0.9% chance of exploitation in the next 30 days.

A security flaw has been discovered in rcourtman Pulse up to 6.0.4/6.1.0-rc.4. Affected by this issue is the function fmt.Sprintf of the file /api/security/quick-setup of the component Quick Security Setup Handler. The manipulation of the argument Username results in improper input validation. The attack may be performed from remote. Upgrading the affected component is advised.

Affected products

• Rcourtman Pulse: version 6.0.0 only; version 6.0.1 only; version 6.0.2 only; version 6.0.3 only; version 6.0.4 only; version 6.1.0-rc.0 only; …

Published 2026-09-17. Last modified 2026-09-19.