---
id: CVE-2026-53459
title: >-
  Bambuddy is a self-hosted print archive and management system for Bambu Lab 3D
  printers
summary: >-
  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
  flood…
severity: critical
cvss: 9.3
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-636
  - CWE-755
vendor: maziggy
product: bambuddy
affected:
  - 'bambuddy >= 0.1.6, < 0.2.4.4'
published: '2026-09-15'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:16:42.160'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-53459'
references:
  - url: >-
      https://github.com/maziggy/bambuddy/blob/449502cc9fc1cec04f06d31512420eac729fd032/backend/app/core/auth.py#L473-L483
    label: security-advisories@github.com
  - url: >-
      https://github.com/maziggy/bambuddy/blob/449502cc9fc1cec04f06d31512420eac729fd032/backend/app/main.py#L5314-L5316
    label: security-advisories@github.com
  - url: 'https://github.com/maziggy/bambuddy/blob/main/CHANGELOG.md'
    label: security-advisories@github.com
  - url: >-
      https://github.com/maziggy/bambuddy/commit/845ad39b19bf99afeea571c6bae09695777e1460
    label: security-advisories@github.com
  - url: 'https://github.com/maziggy/bambuddy/releases/tag/v0.2.4.4'
    label: security-advisories@github.com
  - url: >-
      https://github.com/maziggy/bambuddy/security/advisories/GHSA-6mf4-q26m-47pv
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-09-17T16:30:00.814754Z'
cvssSource: cna
epss: 0.00761
epssPercentile: 0.53412
ingestedAt: '2026-09-15T17:41:02.966Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.