CVE-2025-64513

CRITICAL

Milvus < 2.4.24, 2.5.0-2.5.20, 2.6.0-2.6.4 - Unauthenticated Authentication Bypass in Proxy Component

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2025-64513. PoCs published by shinyseam.

AI-analyzed exploit summary This repository contains a detailed writeup and usage instructions for a PoC script targeting CVE-2025-64513, an authentication bypass vulnerability in Milvus Proxy. The writeup describes the vulnerability, affected versions, and mitigation steps but does not include the actual exploit code.

Description

Milvus is an open-source vector database built for generative AI applications. An unauthenticated attacker can exploit a vulnerability in versions prior to 2.4.24, 2.5.21, and 2.6.5 to bypass all authentication mechanisms in the Milvus Proxy component, gaining full administrative access to the Milvus cluster. This grants the attacker the ability to read, modify, or delete data, and to perform privileged administrative operations such as database or collection management. This issue has been fixed in Milvus 2.4.24, 2.5.21, and 2.6.5. If immediate upgrade is not possible, a temporary mitigation can be applied by removing the sourceID header from all incoming requests at the gateway, API gateway, or load balancer level before they reach the Milvus Proxy. This prevents attackers from exploiting the authentication bypass behavior.

Exploits (1)

nomisec WRITEUP
by shinyseam · poc
https://github.com/shinyseam/CVE-2025-64513

This repository contains a detailed writeup and usage instructions for a PoC script targeting CVE-2025-64513, an authentication bypass vulnerability in Milvus Proxy. The writeup describes the vulnerability, affected versions, and mitigation steps but does not include the actual exploit code.

Classification
Writeup 90%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Theoretical
Target: Milvus Proxy < 2.4.24, 2.5.* < 2.5.21, 2.6.* < 2.6.5
No auth needed
Prerequisites: Network access to Milvus Proxy on port 19530 · Crafted 'sourceid' header
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Issue Tracking x_refsource_misc
https://github.com/milvus-io/milvus/pull/45379
Issue Tracking x_refsource_misc
https://github.com/milvus-io/milvus/pull/45383
Issue Tracking x_refsource_misc
https://github.com/milvus-io/milvus/pull/45391

Scores

CVSS v4 9.3
EPSS 0.0018
EPSS Percentile 39.5%
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

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-287
Status published
Products (4)
milvus-io/milvus 0.10.4 - 2.4.24Go
milvus-io/milvus < 2.4.24
milvus-io/milvus >= 2.5.0, < 2.5.21
milvus-io/milvus >= 2.6.0, < 2.6.5
Published Nov 10, 2025
Tracked Since Feb 18, 2026