VDB
CVE-2026-26190
CVE-2026-26190
PUBLISHED
KEV
CVSS 9.800000190734863 CRITICAL
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.
EPSS 4.14% · 90.5th percentile
Risk Scores
CVSS 3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
4.14%
90.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Bitnami | milvus | 0, 2.6.0 |
| Bitnami | milvus | 0, 2.6.0 |
Timeline
- Jun 26, 2021 CrowdSec Sighting
- Sep 24, 2022 CrowdSec Sighting
- Feb 1, 2025 CrowdSec Sighting
- Feb 11, 2026 CVE Published
- Feb 13, 2026 PoC Published
- Feb 14, 2026 EPSS Score
- Feb 14, 2026 PoC Published
- Feb 14, 2026 PoC Published
- Feb 14, 2026 PoC Published
- Feb 15, 2026 Security Advisory
- Feb 16, 2026 EPSS Score
- Feb 18, 2026 EPSS Score
References
- https://github.com/milvus-io/milvus/commit/92b74dd2e286006a83b4a5f07951027b32e718a9 fix
- https://github.com/milvus-io/milvus/releases/tag/v2.5.27 fix
- https://github.com/milvus-io/milvus/security/advisories/GHSA-7ppg-37fh-vcr6 url
- https://nvd.nist.gov/vuln/detail/CVE-2026-26190 url
- https://github.com/milvus-io/milvus/releases/tag/v2.6.10 fix