CVE-2025-64513Public exploitNetwork attack vector

Unauthenticated cluster takeover via forged sourceID metadata

Published Nov 10, 2025 · Updated Nov 10, 2025

Authentication bypass in Milvus Proxy before 2.4.24, 2.5.0 through 2.5.20, and 2.6.0 through 2.6.4 allows remote attackers full cluster access. AuthenticationInterceptor decoded caller-controlled sourceID metadata and treated the public member sentinel as proof of an internal RPC, skipping password and API-key checks. Network access to the Proxy gRPC service is sufficient; forged metadata grants unauthenticated database, collection, data, and RBAC operations.

CVSS severity9.3
Critical
EPSS probability1.05%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Milvus Proxy before 2.4.24, 2.5.0 through 2.5.20, and 2.6.0 through 2.6.4 allows remote attackers full cluster access. AuthenticationInterceptor decoded caller-controlled sourceID metadata and treated the public member sentinel as proof of an internal RPC, skipping password and API-key checks. Network access to the Proxy gRPC service is sufficient; forged metadata grants unauthenticated database, collection, data, and RBAC operations.

The record

CVE
CVE-2025-64513
Published
Nov 10, 2025
Updated
Nov 10, 2025
Vendor
Milvus
Product
Milvus
Classifications
CWE-287, CAPEC-115, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.4.24
  2. Affected versionversion=>= 2.5.0, < 2.5.21
  3. Affected versionversion=>= 2.6.0, < 2.6.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Milvus · Milvusversion=< 2.4.24; version=>= 2.5.0, < 2.5.21; version=>= 2.6.0, < 2.6.5

Published CVSS scores

9.3GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-287Improper Authentication
CAPEC-115Authentication Bypass
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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