cvedb.io
CVE-2026-26190
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2026-02-13T19:17:29.253 · Last modified 2026-06-17T10:25:54.857

Summary

Milvus is an open-source vector database built for generative AI applications. Prior to 2.5.27 and 2.6.10, Milvus exposes TCP port 9091 by default, which enables authentication bypasses. The /expr debug endpoint uses a weak, predictable default authentication token derived from etcd.rootPath (default: by-dev), enabling arbitrary expression evaluation. The full REST API (/api/v1/*) is registered on the metrics/management port without any authentication, allowing unauthenticated access to all business operations including data manipulation and credential management. This vulnerability is fixed in 2.5.27 and 2.6.10.

Affected products

milvus — milvus

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.