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CVE-2026-26190

Milvus Allows Unauthenticated Access to Restful API on Metrics Port (9091) Leads to Critical System Compromise PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
milvus-io / milvusaffected < 2.5.27; affected >= 2.6.0, < 2.6.10

CWE

CWE-306

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.