Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2026-02-19 08:47

Modified

2026-02-19 09:13

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.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "milvus",
        "purl": "pkg:bitnami/milvus"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.5.27"
            },
            {
              "introduced": "2.6.0"
            },
            {
              "fixed": "2.6.10"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-26190"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:milvus:milvus:*:*:*:*:*:*:*:*"
    ],
    "severity": "Critical"
  },
  "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.",
  "id": "BIT-milvus-2026-26190",
  "modified": "2026-02-19T09:13:37.164Z",
  "published": "2026-02-19T08:47:10.808Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/milvus-io/milvus/commit/92b74dd2e286006a83b4a5f07951027b32e718a9"
    },
    {
      "type": "WEB",
      "url": "https://github.com/milvus-io/milvus/releases/tag/v2.5.27"
    },
    {
      "type": "WEB",
      "url": "https://github.com/milvus-io/milvus/releases/tag/v2.6.10"
    },
    {
      "type": "WEB",
      "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"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "Milvus Allows Unauthenticated Access to Restful API on Metrics Port (9091) Leads to Critical System Compromise"
}

CVE-2026-26190 (GCVE-0-2026-26190)

Vulnerability from cvelistv5 – Published: 2026-02-13 18:44 – Updated: 2026-02-18 04:56

Title

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

Summary

Severity ?

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-306 - Missing Authentication for Critical Function

Assigner

GitHub_M

References

URL

Tags

	https://github.com/milvus-io/milvus/security/advi…	x_refsource_CONFIRM
	https://github.com/milvus-io/milvus/commit/92b74d…	x_refsource_MISC
	https://github.com/milvus-io/milvus/releases/tag/…	x_refsource_MISC
	https://github.com/milvus-io/milvus/releases/tag/…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	milvus-io	milvus	Affected: < 2.5.27 Affected: >= 2.6.0, < 2.6.10

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-26190",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-17T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-18T04:56:24.240Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "milvus",
          "vendor": "milvus-io",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.5.27"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.6.0, \u003c 2.6.10"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "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"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-306",
              "description": "CWE-306: Missing Authentication for Critical Function",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-13T18:44:33.465Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/milvus-io/milvus/security/advisories/GHSA-7ppg-37fh-vcr6",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/milvus-io/milvus/security/advisories/GHSA-7ppg-37fh-vcr6"
        },
        {
          "name": "https://github.com/milvus-io/milvus/commit/92b74dd2e286006a83b4a5f07951027b32e718a9",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/milvus-io/milvus/commit/92b74dd2e286006a83b4a5f07951027b32e718a9"
        },
        {
          "name": "https://github.com/milvus-io/milvus/releases/tag/v2.5.27",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/milvus-io/milvus/releases/tag/v2.5.27"
        },
        {
          "name": "https://github.com/milvus-io/milvus/releases/tag/v2.6.10",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/milvus-io/milvus/releases/tag/v2.6.10"
        }
      ],
      "source": {
        "advisory": "GHSA-7ppg-37fh-vcr6",
        "discovery": "UNKNOWN"
      },
      "title": "Milvus Allows Unauthenticated Access to Restful API on Metrics Port (9091) Leads to Critical System Compromise"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-26190",
    "datePublished": "2026-02-13T18:44:33.465Z",
    "dateReserved": "2026-02-11T19:56:24.812Z",
    "dateUpdated": "2026-02-18T04:56:24.240Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

Vulnerability from bitnami_vulndb

CVE-2026-26190 (GCVE-0-2026-26190)

Tags

Sightings

Nomenclature