Improper input validation in Gardener
CVE-2025-47283
Gardener implements the automated management and operation of Kubernetes clusters as a service. A security vulnerability was discovered in Gardener prior to versions 1.116.4, 1.117.5, 1.118.2, and 1.119.0 that 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 no matter of the public cloud provider(s) used for the seed clusters/shoot clusters. `gardener/gardener` (`gardenlet`) is the affected component. Versions 1.116.4, 1.117.5, 1.118.2, and 1.119.0 fix the issue.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.006 (43.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Gardener — versions < 1.116.4, >= 1.117.0, < 1.117.5, >= 1.118.0, < 1.118.2
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-47283?
- CVE-2025-47283 is a critical-severity vulnerability in Gardener, classified under Improper Input Validation. CVSS score: 9.9/10. Published 2025-05-19.
- How severe is CVE-2025-47283?
- Critical severity. CVSS v3 base score is 9.9 out of 10.