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Fencer Vulns
critical 9.3

CVE-2025-64513 json

Milvus Proxy has Critical Authentication Bypass Vulnerability

published 2025-11-10 11 mo ago modified 2026-06-17 4 mo ago also BIT-milvus-2025-64513 , EUVD-2025-50814 , GHSA-mhjq-8c7m-3f7p , GO-2025-4114

cvss
9.3
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits
0
none known

Summary

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.

Patch / fix

  • go github.com/milvus-io/milvus 0.10.3-0.20251107071934-6102f001a971, 2.4.24, 2.5.21, 2.6.5
  • bitnami milvus 2.4.24, 2.5.21, 2.6.5
  • milvus milvus 2.4.24, 2.5.21, 2.6.5
  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1

opensuse advisories openSUSE-SU-2026:21483-1

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
11 mo ago

Exploit prediction

0.87% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 9.3 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
CNA 4.0 9.3 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected packages

ecosystem package affected fixed in
go github.com/milvus-io/milvus
>=0.10.4, <2.4.24
>=2.5.0, <2.5.21
>=2.6.0, <2.6.5
<0.10.3-0.20251107071934-6102f001a971
>=0.10.4
2.4.24
2.5.21
2.6.5
0.10.3-0.20251107071934-6102f001a971
bitnami milvus
<2.4.24
>=2.5.0, <2.5.21
>=2.6.0, <2.6.5
2.4.24
2.5.21
2.6.5

Affected products

  • milvus-io milvus

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.