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Critical · 9.3 CVE-2026-53459 EUVD-2026-78895

Bambuddy's authentication fails open on database errors, allowing unauthenticated access to all endpoints

Published Sep 15, 2026 · Updated Sep 17, 2026 · Assigned by GitHub_M

Description

Bambuddy is a self-hosted print archive and management system for Bambu Lab 3D printers. Starting in version 0.1.6 and prior to version 0.2.4.4, a fail-open in the authentication code allows any attacker to bypass authentication by flooding a public endpoint to exhaust resources causing database access to fail, granting unauthenticated access to all protected endpoints. Version 0.2.4.4 patches the issue.

Affected products

VendorProductAffectedFixed
maziggy bambuddy >= 0.1.6, < 0.2.4.4 —

References