CVE-2026-36176

High severity, CVSS 7.1. EPSS: 0.1% chance of exploitation in the next 30 days.

GNCC GP5 v7.1.76 was discovered to store pre-signed Backblaze B2 upload URLs (PUT requests) in plaintext to the serial console. This allows physically-proximate attackers to extract these active tokens to perform unauthorized operations via monitoring the serial UART interface.

Published 2026-06-04. Last modified 2026-07-22.