CVE-2025-64323: kgateway is missing xDS authorization

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-11-07 · updated 2026-06-17
Weakness: CWE-862

Description

kgateway is a Cloud-Native API and AI Gateway. Versions 2.0.4 and below and 2.1.0-agw-cel-rbac through 2.1.0-rc.2 lack authentication, allowing any client with unrestricted network access to the xDS port to retrieve potentially sensitive configuration data including certificate data, backend service information, routing rules, and cluster metadata. This issue is solved in versions 2.0.5 and 2.1.0.

Affected products

kgateway-dev kgateway: from 2.1.0-agw-cel-rbac, < 2.1.0; before 2.0.5

References

https://github.com/kgateway-dev/kgateway/issues/10651
https://github.com/kgateway-dev/kgateway/pull/12471
https://github.com/kgateway-dev/kgateway/pull/12535
https://github.com/kgateway-dev/kgateway/security/advisories/GHSA-4766-x535-jw3r

Get alerted when CVE-2025-64323 or the next vulnerability affects your stack