CVE-2026-26190
Last modified
CVE-2026-26190 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 27.66% chance of exploitation in the next 30 days.
Description
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
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Milvus | Milvus | < 2.5.27 |
| Milvus | Milvus | >= 2.6.0, < 2.6.10 |
References
- https://github.com/milvus-io/milvus/releases/tag/v2.5.27Product, Release Notes
- https://github.com/milvus-io/milvus/releases/tag/v2.6.10Product, Release Notes
- https://github.com/milvus-io/milvus/security/advisories/GHSA-7ppg-37fh-vcr6Exploit, Mitigation, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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