Authentication Bypass

Milvus is vulnerable to Authentication Bypass. The vulnerability is due to unauthenticated exposure of the management port 9091 and use of a weak predictable token for the /expr debug endpoint, allowing attackers to access REST API operations, execute arbitrary expressions, and perform unauthoriz...

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...

GHSA-7PPG-37FH-VCR6 Milvus: Unauthenticated Access to Restful API on Metrics Port (9091) Leads to Critical System Compromise

Summary Milvus exposes TCP port 9091 by default with two critical authentication bypass vulnerabilities: 1. The /expr debug endpoint uses a weak, predictable default authentication token derived from etcd.rootPath default: by-dev, enabling arbitrary expression evaluation. 2. The full REST API...

Remote Code Execution (RCE)

Overview Affected versions of this package are vulnerable to Remote Code Execution RCE over the /expr endpoint. An authenticated user can execute code or disrupt service by sending malicious serialized data as the code parameter, which is passed to expr.Exec and executed as an expression without...

Remote Code Execution (RCE)

Overview Affected versions of this package are vulnerable to Remote Code Execution RCE over the /expr endpoint. An authenticated user can execute code or disrupt service by sending malicious serialized data as the code parameter, which is passed to expr.Exec and executed as an expression without...

Remote Code Execution (RCE)

Overview Affected versions of this package are vulnerable to Remote Code Execution RCE over the /expr endpoint. An authenticated user can execute code or disrupt service by sending malicious serialized data as the code parameter, which is passed to expr.Exec and executed as an expression without...