CVE-2026-53459: CWE-636: Not Failing Securely ('Failing Open') in maziggy bambuddy
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.
AI Analysis
Technical Summary
CVE-2026-53459 is a critical vulnerability in Bambuddy versions >=0.1.6 and <0.2.4.4 where an attacker can cause a fail-open condition in the authentication mechanism by flooding a public endpoint. This resource exhaustion leads to database access failures, allowing attackers to bypass authentication and gain unauthorized access to all protected endpoints. The vulnerability is classified under CWE-636 (Not Failing Securely) and CWE-755. The issue is resolved in version 0.2.4.4.
Potential Impact
Successful exploitation allows an unauthenticated attacker to bypass authentication controls entirely, gaining unauthorized access to all protected endpoints of the Bambuddy system. This could lead to unauthorized data access or manipulation within the print archive and management system. The CVSS 4.0 score of 9.3 reflects the critical severity and network-based, no user interaction required nature of the vulnerability.
Mitigation Recommendations
Upgrade Bambuddy to version 0.2.4.4 or later, where this fail-open authentication vulnerability has been patched. No other mitigations are indicated by the vendor advisory.
CVE-2026-53459: CWE-636: Not Failing Securely ('Failing Open') in maziggy bambuddy
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.
CVSS v4.0
Score 9.3critical
Affected software
maziggy
bambuddy
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-53459 is a critical vulnerability in Bambuddy versions >=0.1.6 and <0.2.4.4 where an attacker can cause a fail-open condition in the authentication mechanism by flooding a public endpoint. This resource exhaustion leads to database access failures, allowing attackers to bypass authentication and gain unauthorized access to all protected endpoints. The vulnerability is classified under CWE-636 (Not Failing Securely) and CWE-755. The issue is resolved in version 0.2.4.4.
Potential Impact
Successful exploitation allows an unauthenticated attacker to bypass authentication controls entirely, gaining unauthorized access to all protected endpoints of the Bambuddy system. This could lead to unauthorized data access or manipulation within the print archive and management system. The CVSS 4.0 score of 9.3 reflects the critical severity and network-based, no user interaction required nature of the vulnerability.
Mitigation Recommendations
Upgrade Bambuddy to version 0.2.4.4 or later, where this fail-open authentication vulnerability has been patched. No other mitigations are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-09T16:31:21.495Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aa9812a55bf5e2cf527c2b7
Added to database: 09/15/2026, 17:32:26 UTC
Last enriched: 09/15/2026, 17:49:14 UTC
Last updated: 09/16/2026, 03:08:14 UTC
Views: 11
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