A vulnerability has been found in milvus-io milvus up to 2.6.13. This vulnerability affects unknown code of the file internal/metastore/kv/rootcoord/kv_catalog.go of the component Grantee ID Hash Handler. The manipulation leads to use of weak hash. The attack needs to be performed locally. The attack's complexity is rated as high. It is stated that the exploitability is difficult. The exploit has been disclosed to the public and may be used. The identifier of the patch is 3d932f1c3e065351c4440c27abe1e6479752544d. Applying a patch is the recommended action to fix this issue.
CVSS Score
1.1
EPSS Score
0.0
Published
2026-06-04
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.
CVSS Score
9.8
EPSS Score
0.151
Published
2026-02-13