CVE-2020-8555
MEDIUM6.3EPSS 8.6%Server Side Request Forgery (SSRF) in Kubernetes in k8s.io/kubernetes
Published: 2/15/2022Modified: 4/28/2026
Description
The Kubernetes kube-controller-manager in versions v1.0-1.14, versions prior to v1.15.12, v1.16.9, v1.17.5, and version v1.18.0 are vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to 500 bytes of arbitrary information from unprotected endpoints within the master's host network (such as link-local or loopback services).
Affected packages (3)
- Debian/kubernetesfrom 0, < 1.18.2-1
- Go/k8s.io/kubernetes>= 1.18.0, < 1.18.1
- Go/k8s.io/kubernetesfrom 0, < 1.15.12, >= 1.16.0, < 1.16.9, >= 1.17.0, < 1.17.4, >= 1.18.0, < 1.18.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.3 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N |
References (10)
- ADVISORYhttps://github.com/advisories/GHSA-x6mj-w4jf-jmgw
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2020-8555
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2020-8555
- WEBhttps://github.com/kubernetes/kubernetes/issues/91542
- WEBhttps://github.com/kubernetes/kubernetes/pull/89794
- WEBhttps://groups.google.com/d/topic/kubernetes-security-announce/kEK27tqqs30/discussion
- WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX
- WEBhttps://security.netapp.com/advisory/ntap-20200724-0005
- WEBhttp://www.openwall.com/lists/oss-security/2020/06/01/4
- WEBhttp://www.openwall.com/lists/oss-security/2021/05/04/8