CVE-2025-47282 Malicious google credential in DNS secret can lead to privilege escalation

What is CVE-2025-47282?

CVE-2025-47282 is a critical vulnerability in gardener external-dns-management, published on 19 May 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Gardener External DNS Management is an environment to manage external DNS entries for a kubernetes cluster. A security vulnerability was discovered in Gardener's External DNS Management prior to version 0.23.6 that could allow a user with administrative privileges for a Gardener project or a user with administrative privileges for a shoot cluster, including administrative privileges for a single namespace of the shoot cluster, to obtain control over the seed cluster where the shoot cluster is managed. This CVE affects all Gardener installations no matter of the public cloud provider(s) used for the seed clusters/shoot clusters. The affected component is `gardener/external-dns-management`. The `external-dns-management` component may also be deployed on the seeds by the `gardener/gardener-extension-shoot-dns-service` extension when the extension is enabled. In this case, all versions of the `shoot-dns-service` extension `<= v1.60.0` are affected by this vulnerability. Version 0.23.6 of Gardener External DNS Management fixes the issue.

Weakness: CWE-20

Which versions are affected by CVE-2025-47282?

6 open source packages ship an affected version, including github.com/gardener/external-dns-management and github.com/gardener/gardener-extension-shoot-dns-service.

How do I fix CVE-2025-47282?

Upgrade github.com/gardener/external-dns-management to 0.23.6 or later.

Is CVE-2025-47282 being exploited?

There is no known exploitation of CVE-2025-47282 in the wild and no public exploit code.

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-xwgg-m7fx-83wx, GO-2025-3697.