CVE-2026-26190

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.

The following products are affected by CVE-2026-26190 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-26190.

URL	Resource
https://github.com/milvus-io/milvus/commit/92b74dd2e286006a83b4a5f07951027b32e718a9
https://github.com/milvus-io/milvus/releases/tag/v2.5.27
https://github.com/milvus-io/milvus/releases/tag/v2.6.10
https://github.com/milvus-io/milvus/security/advisories/GHSA-7ppg-37fh-vcr6