CVE-2026-26190

Source
https://cve.org/CVERecord?id=CVE-2026-26190
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-26190.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-26190
Aliases
Downstream
Related
Published
2026-02-13T18:44:33.465Z
Modified
2026-05-18T05:58:39.329393724Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
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.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26190.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-306"
    ]
}
References

Affected packages

Git / github.com/milvus-io/milvus

Affected ranges

Type
GIT
Repo
https://github.com/milvus-io/milvus
Events

Affected versions

client/v2.*
client/v2.6.0
client/v2.6.1
client/v2.6.2
pkg/v2.*
pkg/v2.6.0
pkg/v2.6.1
pkg/v2.6.2
pkg/v2.6.3
pkg/v2.6.4
pkg/v2.6.6
pkg/v2.6.7
pkg/v2.6.8
pkg/v2.6.9
v2.*
v2.6.0
v2.6.1
v2.6.2
v2.6.3
v2.6.4
v2.6.6
v2.6.7
v2.6.8
v2.6.9

Database specific

source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-26190.json"