Authentication bypass via fail-open database error handling
Published Sep 15, 2026 · Updated Sep 15, 2026
Authentication bypass in Bambuddy 0.1.6 through 0.2.4.3 allows remote attackers to access all protected endpoints. The is_auth_enabled function catches database-access exceptions and returns false, treating authentication as disabled instead of denying the request. Flooding the public login endpoint can exhaust file descriptors and trigger the error window, exposing protected data and administrative actions without credentials.
Summary
What happened
Authentication bypass in Bambuddy 0.1.6 through 0.2.4.3 allows remote attackers to access all protected endpoints. The is_auth_enabled function catches database-access exceptions and returns false, treating authentication as disabled instead of denying the request. Flooding the public login endpoint can exhaust file descriptors and trigger the error window, exposing protected data and administrative actions without credentials.
The record
- CVE
- CVE-2026-53459
- Published
- Sep 15, 2026
- Updated
- Sep 15, 2026
- Vendor
- Martin Ziegler
- Product
- Bambuddy
- Classifications
- CWE-636, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 15, 2026CVE publishedPublication date reported by the CVE source.
- Sep 15, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=>= 0.1.6, < 0.2.4.4
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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