CVE-2025-49652: BackendAI Missing Authentication for Critical Function

CVE-2025-49652 · Severity: critical · CVSS 9.8 · Published 2025-06-09

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.

Technologies: backend-ai (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2025-49652 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-49652 being exploited in the wild.
How severe is CVE-2025-49652?
Critical severity, with a CVSS score of 9.8, published 9 June 2025.
Which products and versions are affected?
backend-ai (PyPI) < 25.15.6, ECOSYSTEM:introduced=0,fixed=25.15.6, ECOSYSTEM:introduced=0,fixed=25.15.6,introduced=25.16.0rc1,fixed=25.19.0rc1.
Is there a fix for CVE-2025-49652?
Yes. backend-ai (PyPI): upgrade to 25.15.6, 25.19.0rc1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2025-49652?
Check whether you run backend-ai (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • backend-ai (PyPI): upgrade to 25.15.6, 25.19.0rc1 or later
    pip install "backend-ai>=25.19.0rc1"

Affected products

  • backend-ai (PyPI) < 25.15.6, ECOSYSTEM:introduced=0,fixed=25.15.6, ECOSYSTEM:introduced=0,fixed=25.15.6,introduced=25.16.0rc1,fixed=25.19.0rc1

Identifiers

  • CVE-2025-49652
  • GHSA-ww28-4m4v-cq4j
  • PYSEC-2026-290

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