CVE-2019-12494

Severity: high (CVSS 7.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-06-05 · updated 2026-06-17

Description

In Gardener before 0.20.0, incorrect access control in seed clusters allows information disclosure by sending HTTP GET requests from one's own shoot clusters to foreign shoot clusters. This occurs because traffic from shoot to seed via the VPN endpoint is not blocked.

Affected products

gardener: before 0.20.0 — fixed in 0.20.0

How to fix

Upgrade to a fixed version: gardener 0.20.0. Check the vendor advisory for mitigations.

References

https://github.com/gardener/gardener/pull/874
https://github.com/gardener/vpn/issues/40
https://groups.google.com/forum/#%21topic/gardener/pH6dNIEhv-A
https://github.com/gardener/gardener/pull/874
https://github.com/gardener/vpn/issues/40
https://groups.google.com/forum/#%21topic/gardener/pH6dNIEhv-A

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