{"id":"CVE-2026-53459","aliases":["GHSA-6mf4-q26m-47pv"],"url":"https://o3.security/vulnerability/CVE-2026-53459","summary":"Bambuddy's authentication fails open on database errors, allowing unauthenticated access to all endpoints","details":"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.","published":"2026-09-15T17:25:27.247Z","modified":"2026-09-17T03:47:12.710182197Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/maziggy/bambuddy/commit/845ad39b19bf99afeea571c6bae09695777e1460","label":"maziggy/bambuddy@845ad39"},"references":[{"type":"WEB","url":"https://github.com/maziggy/bambuddy/blob/449502cc9fc1cec04f06d31512420eac729fd032/backend/app/core/auth.py#L473-L483"},{"type":"WEB","url":"https://github.com/maziggy/bambuddy/blob/449502cc9fc1cec04f06d31512420eac729fd032/backend/app/main.py#L5314-L5316"},{"type":"WEB","url":"https://github.com/maziggy/bambuddy/blob/main/CHANGELOG.md"},{"type":"WEB","url":"https://github.com/maziggy/bambuddy/releases/tag/v0.2.4.4"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53459.json"},{"type":"ADVISORY","url":"https://github.com/maziggy/bambuddy/security/advisories/GHSA-6mf4-q26m-47pv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53459"},{"type":"FIX","url":"https://github.com/maziggy/bambuddy/commit/845ad39b19bf99afeea571c6bae09695777e1460"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-17T03:47:12.710182197Z"}}