CVE-2026-53459

CRITICALPre-NVD 9.39.3—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 64% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
9.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.3Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
9.3
EG Score
9.3(medium)
EG Risk
57(Track)
EG Risk 57/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity93% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

September 15, 2026

Last Modified

September 17, 2026

Advisory Details (5)

Auto-updated Sep 15, 2026
Patch available. Sources: github_commit, github_release.
github_release Patch Available

v0.2.4.4 - Security Release

Patch available: maziggy/bambuddy v0.2.4.4

https://github.com/maziggy/bambuddy/releases/tag/v0.2.4.4
github_commit

commit 845ad39b19bf (maziggy/bambuddy)

Fix landed in maziggy/bambuddy commit 845ad39b19bf — awaiting tagged release

https://github.com/maziggy/bambuddy/commit/845ad39b19bf99afeea571c6bae09695777e1460
generic

bambuddy/CHANGELOG.md at main · maziggy/bambuddy · GitHub

https://github.com/maziggy/bambuddy/blob/main/CHANGELOG.md
generic

bambuddy/backend/app/main.py at 449502cc9fc1cec04f06d31512420eac729fd032 · maziggy/bambuddy · GitHub

https://github.com/maziggy/bambuddy/blob/449502cc9fc1cec04f06d31512420eac729fd032/backend/app/main.py#L5314-L5316
generic

bambuddy/backend/app/core/auth.py at 449502cc9fc1cec04f06d31512420eac729fd032 · maziggy/bambuddy · GitHub

https://github.com/maziggy/bambuddy/blob/449502cc9fc1cec04f06d31512420eac729fd032/backend/app/core/auth.py#L473-L483

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 9× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-18 20:03 UTCEG score recompute
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-17 21:50 UTCEG score recompute
  4. 2026-09-17 18:08 UTCEG score recompute
  5. 2026-09-16 17:55 UTCEG score recompute
  6. 2026-09-16 14:08 UTCEPSS rescore
  7. 2026-09-15 18:32 UTCEG score recompute
  8. 2026-09-15 17:28 UTCEG score recompute
  9. 2026-09-15 17:28 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-53459?
CVE-2026-53459 is a critical vulnerability published on September 15, 2026. 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…
When was CVE-2026-53459 disclosed?
CVE-2026-53459 was first published in the National Vulnerability Database on September 15, 2026, with the most recent update on September 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53459 actively exploited?
CVE-2026-53459 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 64.2% of all scored CVEs.
What is the CVSS score of CVE-2026-53459?
CVE-2026-53459 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2026-53459?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53459, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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