Unauthenticated data and credential control via management routes
Published Feb 13, 2026 · Updated Feb 13, 2026
Authentication bypass in Milvus before 2.5.27 and 2.6.0 through 2.6.9 allows remote attackers to read and alter data via TCP port 9091. registerHTTPServer attaches the full API v1 business route set to the metrics server without authentication, while the expr endpoint accepts the predictable default etcd.rootPath token. Network access to the default management port is sufficient to read secrets, alter or delete data, manage credentials, stop the proxy, and write files.
Summary
What happened
Authentication bypass in Milvus before 2.5.27 and 2.6.0 through 2.6.9 allows remote attackers to read and alter data via TCP port 9091. registerHTTPServer attaches the full API v1 business route set to the metrics server without authentication, while the expr endpoint accepts the predictable default etcd.rootPath token. Network access to the default management port is sufficient to read secrets, alter or delete data, manage credentials, stop the proxy, and write files.
The record
- CVE
- CVE-2026-26190
- Published
- Feb 13, 2026
- Updated
- Feb 13, 2026
- Vendor
- Milvus
- Product
- Milvus
- Classifications
- CWE-306, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 13, 2026CVE publishedPublication date reported by the CVE source.
- Feb 13, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 2.5.27
- Affected versionversion=>= 2.6.0, < 2.6.10
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Vendor advisory proof-of-concept requestsproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo