CVE-2025-58366: Onyxia private helm repository credentials are leaked through unauthenticated API

Severity: critical (CVSS 9.4 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-09-05 · updated 2026-06-17
Weakness: CWE-522

Description

Onyxia is a data science environment for kubernetes. In versions 4.6.0 through 4.8.0, Onyxia-API leaked the credentials of private helm repositories in the public (unauthenticated) /public/catalogs endpoint.vOnly instances using private helm repositories (i.e setting username & password in the catalogs configuration) are affected. This is fixed in version 4.9.0.

Affected products

InseeFrLab onyxia: from 4.6.0, < 4.9.0

References

https://github.com/InseeFrLab/onyxia-api/pull/613
https://github.com/InseeFrLab/onyxia-api/releases/tag/v4.9.0
https://github.com/InseeFrLab/onyxia/security/advisories/GHSA-m773-6vm8-8x6q

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