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CVE-2025-64323: kgateway is missing xDS authorization

November 4, 2025 (updated November 17, 2025)

The xDS interface in Kgateway versions 2.0.0 through 2.0.4 lacks 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.

References

  • github.com/advisories/GHSA-4766-x535-jw3r
  • github.com/kgateway-dev/kgateway
  • github.com/kgateway-dev/kgateway/issues/10651
  • github.com/kgateway-dev/kgateway/pull/12471
  • github.com/kgateway-dev/kgateway/pull/12535
  • github.com/kgateway-dev/kgateway/security/advisories/GHSA-4766-x535-jw3r
  • nvd.nist.gov/vuln/detail/CVE-2025-64323

Code Behaviors & Features

Detect and mitigate CVE-2025-64323 with GitLab Dependency Scanning

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Affected versions

All versions before 2.0.5, all versions starting from 2.1.0-agw-cel-rbac before 2.1.0

Fixed versions

  • 2.1.0
  • 2.0.5

Solution

Upgrade to versions 2.0.5, 2.1.0 or above.

Impact 5.3 MEDIUM

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Learn more about CVSS

Weakness

  • CWE-862: Missing Authorization

Source file

go/github.com/kgateway-dev/kgateway/v2/CVE-2025-64323.yml

Spotted a mistake? Edit the file on GitLab.

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