{"schema_version":"1.9.0","id":"BIT-milvus-2026-26190","published":"2026-02-19T08:47:10.808Z","modified":"2026-09-08T08:48:13.545037182Z","aliases":["CVE-2026-26190","GHSA-7ppg-37fh-vcr6","GO-2026-4481"],"summary":"Milvus Allows Unauthenticated Access to Restful API on Metrics Port (9091) Leads to Critical System Compromise","details":"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":[{"package":{"name":"milvus","ecosystem":"Bitnami","purl":"pkg:bitnami/milvus"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.5.27"},{"introduced":"2.6.0"},{"fixed":"2.6.10"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/milvus/BIT-milvus-2026-26190.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}],"references":[{"type":"FIX","url":"https://github.com/milvus-io/milvus/commit/92b74dd2e286006a83b4a5f07951027b32e718a9"},{"type":"ARTICLE","url":"https://github.com/milvus-io/milvus/releases/tag/v2.5.27"},{"type":"ARTICLE","url":"https://github.com/milvus-io/milvus/releases/tag/v2.6.10"},{"type":"ADVISORY","url":"https://github.com/milvus-io/milvus/security/advisories/GHSA-7ppg-37fh-vcr6"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-26190"}],"database_specific":{"cpes":["cpe:2.3:a:milvus:milvus:*:*:*:*:*:*:*:*"],"severity":"Critical"}}