CVE-2025-64323 kgateway is missing xDS authorization
Attackers with network access to the xDS port can retrieve sensitive configuration data due to missing authentication in kgateway.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-64323?
CVE-2025-64323 is a medium-severity missing authorization vulnerability in kgateway-dev kgateway, published on 7 Nov 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2025-64323?
6 open source packages ship an affected version, including github.com/kgateway-dev/kgateway/v2 and github.com/kgateway-dev/kgateway.
| Package | Affected | Fixed in |
|---|---|---|
github.com/kgateway-dev/kgateway/v2 Go | All versions | 2.0.5, 2.1.0 |
github.com/kgateway-dev/kgateway/v2 Go | All versions | 2.0.5 |
github.com/kgateway-dev/kgateway/v2 Go | All versions | 2.0.5 |
github.com/kgateway-dev/kgateway/v2 Go | From 2.1.0-agw-cel-rbac | 2.1.0 |
github.com/kgateway-dev/kgateway/v2 Go | From 2.1.0-agw-cel-rbac | 2.1.0 |
github.com/kgateway-dev/kgateway Go | All versions | None |
How do I fix CVE-2025-64323?
Upgrade github.com/kgateway-dev/kgateway/v2 to a fixed version for your release line: 2.0.5 or 2.1.0.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-64323 being exploited?
There is no known exploitation of CVE-2025-64323 in the wild and no public exploit code.
Sources
Also known as GHSA-4766-x535-jw3r, GO-2025-4094.