FKIE_CVE-2026-26190

Vulnerability from fkie_nvd - Published: 2026-02-13 19:17 - Updated: 2026-02-18 19:11
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
security-advisories@github.comhttps://github.com/milvus-io/milvus/commit/92b74dd2e286006a83b4a5f07951027b32e718a9Patch
security-advisories@github.comhttps://github.com/milvus-io/milvus/releases/tag/v2.5.27Product, Release Notes
security-advisories@github.comhttps://github.com/milvus-io/milvus/releases/tag/v2.6.10Product, Release Notes
security-advisories@github.comhttps://github.com/milvus-io/milvus/security/advisories/GHSA-7ppg-37fh-vcr6Exploit, Mitigation, Vendor Advisory
Impacted products
Vendor Product Version
milvus milvus *
milvus milvus *
To clipboard 

{
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    {
      "nodes": [
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              "criteria": "cpe:2.3:a:milvus:milvus:*:*:*:*:*:*:*:*",
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      "value": "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."
    },
    {
      "lang": "es",
      "value": "Milvus es una base de datos vectorial de c\u00f3digo abierto construida para aplicaciones de IA generativa. Antes de 2.5.27 y 2.6.10, Milvus expone el puerto TCP 9091 por defecto, lo que permite eludir la autenticaci\u00f3n. El endpoint de depuraci\u00f3n /expr utiliza un token de autenticaci\u00f3n predeterminado d\u00e9bil y predecible derivado de etcd.rootPath (por defecto: by-dev), lo que permite la evaluaci\u00f3n arbitraria de expresiones. La API REST completa (/api/v1/*) est\u00e1 registrada en el puerto de m\u00e9tricas/gesti\u00f3n sin ninguna autenticaci\u00f3n, lo que permite el acceso no autenticado a todas las operaciones comerciales, incluida la manipulaci\u00f3n de datos y la gesti\u00f3n de credenciales. Esta vulnerabilidad se corrige en 2.5.27 y 2.6.10."
    }
  ],
  "id": "CVE-2026-26190",
  "lastModified": "2026-02-18T19:11:12.333",
  "metrics": {
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          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
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          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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  "published": "2026-02-13T19:17:29.253",
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  "vulnStatus": "Analyzed",
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}


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