CVE-2026-53459 Bambuddy's authentication fails open on database errors, allowing unauthenticated access to all endpoints
Attackers can bypass authentication by exhausting database resources, gaining unauthenticated access to all protected endpoints in Bambuddy.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-53459?
CVE-2026-53459 is a critical authentication bypass vulnerability in maziggy bambuddy, published on 15 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Which versions are affected by CVE-2026-53459?
How do I fix CVE-2026-53459?
No fix has been published for CVE-2026-53459 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-53459 being exploited?
There is no known exploitation of CVE-2026-53459 in the wild and no public exploit code.
Sources
Also known as GHSA-6mf4-q26m-47pv.