BackendAI Missing Authentication for Critical Function
Missing Authentication in the registration feature of Lablup's BackendAI allows arbitrary users to create user accounts that can access private data even when registration is disabled.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | backend-ai | < 25.15.6, >= 25.16.0rc1, < 25.19.0rc1 | 25.15.6, 25.19.0rc1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-49652
- https://github.com/lablup/backend.ai/commit/37fc8f70f9bad2dd01fe2e288f9006e96f9914ed
- https://github.com/lablup/backend.ai/commit/b6d3ddd9e285a7ce59722a37585b9298681eb82f
- https://github.com/lablup/backend.ai/commit/d7704f506e319acff205d91bfca6e2ca92939983
- https://github.com/lablup/backend.ai
- https://hiddenlayer.com/sai_security_advisor/2025-05-backendai-49653
- https://hiddenlayer.com/sai_security_advisor/2025-06-backendai
- https://pypi.org/project/backend-ai
- https://github.com/advisories/GHSA-ww28-4m4v-cq4j
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-306- Platform
- Python (PyPI)
- Package
backend-ai- Disclosed
- 09.06.2025
- Updated
- 11.10.2026 13:17
Sources and licenses
OSV / GitHub Advisory Database - GHSA-ww28-4m4v-cq4j - CC BY 4.0
OSV / GitHub Advisory Database - PYSEC-2026-290 - PyPA Advisory Database; CC BY 4.0
Vulnerability history: backend-ai
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 3
- First → latest
- 06.2025 06.2025
- Without a fix
- 2
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 2
Disclosures per year
- 2025: 3
- 2026: 0
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