by Kastro
Paper/Archive/CVE-2026-53459

CVE-2026-53459

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

EPSS 0.8%CVSS 9.3
critical.is priorityof 100
39
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0EPSS percentile 55.3.553 × 2011.1No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
bambuddy>= 0.1.6, < 0.2.4.4–CNA

Scores by source

GitHub_M (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refgithub.com/maziggy/bambuddy/security/advisories/GHSA-6mf4-q26m-47pvrefgithub.com/maziggy/bambuddy/commit/845ad39b19bf99afeea571c6bae09695777e1460refgithub.com/maziggy/bambuddy/blob/449502cc9fc1cec04f06d31512420eac729fd032/backend/app/core/auth.py#L473-L483refgithub.com/maziggy/bambuddy/blob/449502cc9fc1cec04f06d31512420eac729fd032/backend/app/main.py#L5314-L5316refgithub.com/maziggy/bambuddy/blob/main/CHANGELOG.mdrefgithub.com/maziggy/bambuddy/releases/tag/v0.2.4.4