CVE-2026-53459
critical · 9.3Bambuddy 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.
9.3
CVSS
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EPSS (exploit prob.)
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EPSS percentile
2026-09-15
Published
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weaknesses
CWE-636CWE-755
References
- https://github.com/maziggy/bambuddy/blob/449502cc9fc1cec04f06d31512420eac729fd032/backend/app/core/auth.py#L473-L483
- https://github.com/maziggy/bambuddy/blob/449502cc9fc1cec04f06d31512420eac729fd032/backend/app/main.py#L5314-L5316
- https://github.com/maziggy/bambuddy/blob/main/CHANGELOG.md
- https://github.com/maziggy/bambuddy/commit/845ad39b19bf99afeea571c6bae09695777e1460
- https://github.com/maziggy/bambuddy/releases/tag/v0.2.4.4
- https://github.com/maziggy/bambuddy/security/advisories/GHSA-6mf4-q26m-47pv
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-53459