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CVE

CVE-2026-53459

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

CVE-2026-53459

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

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.3
-
4.0
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
C
H
U
0
-
C
H
U
-

Related Resources

No items found.

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/releases/tag/v0.2.4.4, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53459.json, https://github.com/maziggy/bambuddy/security/advisories/GHSA-6mf4-q26m-47pv, https://nvd.nist.gov/vuln/detail/CVE-2026-53459, https://github.com/maziggy/bambuddy/commit/845ad39b19bf99afeea571c6bae09695777e1460

Severity

0

CVSS Score
0
10

Basic Information

Base CVSS
0
EPSS Probability
0.00761%
EPSS Percentile
0.53927%
Introduced Version
ee704b41580925a2c6895c20e4b1ec25d8bc8ac4
Fix Available
0967f9758bf806131a3fcde54aa054c9b31e0ad7

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