CVE-2026-26190 is a critical vulnerability affecting Milvus, an open-source vector database, in versions prior to 2.5.27 and 2.6.10. It allows unauthenticated remote attackers to bypass authentication on TCP port 9091, leading to arbitrary expression evaluation via a predictable debug token and full access to the REST API for data manipulation and credential management. With a CVSS score of 9.8 (CRITICAL), this vulnerability has a network attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. There is currently no known active exploitation, publicly available exploit code, or significant community discussion, though it has received some media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.5.27CPE matchmatch criteria | cpe:2.3:a:milvus:milvus:*:*:*:*:*:*:*:* | ||
>= 2.6.0, < 2.6.10CPE matchmatch criteria | cpe:2.3:a:milvus:milvus:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.