CVE-2026-106603: Groundhogg Hollerbox

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

Authorization Bypass Through User-Controlled Key vulnerability in Groundhogg HollerBox holler-box allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects HollerBox: from n/a through 2.3.14.

Affected products

• Groundhogg Hollerbox: up to and including 2.3.14

Published 2026-10-08. Last modified 2026-10-08.