CVE-2025-47284 Gardener vulnerable to metadata injection for a project secret that can lead to privilege escalation

What is CVE-2025-47284?

CVE-2025-47284 is a critical vulnerability in gardener, published on 19 May 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Gardener implements the automated management and operation of Kubernetes clusters as a service. A security vulnerability was discovered in the `gardenlet` component of Gardener prior to versions 1.116.4, 1.117.5, 1.118.2, and 1.119.0. It could allow a user with administrative privileges for a Gardener project to obtain control over the seed cluster(s) where their shoot clusters are managed. This CVE affects all Gardener installations where gardener/gardener-extension-provider-gcp is in use. Versions 1.116.4, 1.117.5, 1.118.2, and 1.119.0 fix the issue.

Weakness: CWE-150

Which versions are affected by CVE-2025-47284?

7 open source packages ship an affected version, including github.com/gardener/gardener. It affects 1 product.

Products include Gardener Gardener.

How do I fix CVE-2025-47284?

Upgrade github.com/gardener/gardener to a fixed version for your release line: 1.116.4, 1.117.5 or 1.118.2.

Is CVE-2025-47284 being exploited?

There is no known exploitation of CVE-2025-47284 in the wild and no public exploit code.

Other vulnerabilities in gardener

• CVE-2025-47283 Bypassing project secret validation can lead to privilege escalation Critical 9.9
• CVE-2019-12494 Missing authorization in n/a High 8.5
• CVE-2018-2475 Missing authorization in project “Gardener” High 8.5

Sources

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

Also known as GHSA-9x73-87fh-54w9, GO-2025-3698.