CVE-2020-8555

MediumCVSS 6.3/10Last modified Jun 17, 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).

Metrics

CVSS 3.1 6.3/10CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

Weakness enumeration

CWE-918

Affected software

Vendor	Product	Versions
Kubernetes	Kubernetes	1.18.0; 1.1; 1.2; 1.3; 1.4; 1.5; 1.6; 1.7; 1.8; 1.9; 1.10; 1.11; 1.12; 1.13; 1.14; >= 1.15, < 1.15.12; >= 1.16, < 1.16.9; >= 1.17, < 1.17.5

References

http://www.openwall.com/lists/oss-security/2020/06/01/4Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/05/04/8Mailing List, Third Party Advisory
https://github.com/kubernetes/kubernetes/issues/91542Third Party Advisory
https://groups.google.com/d/topic/kubernetes-security-announce/kEK27tqqs30/discussionMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX/
https://security.netapp.com/advisory/ntap-20200724-0005/Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/06/01/4Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/05/04/8Mailing List, Third Party Advisory
https://github.com/kubernetes/kubernetes/issues/91542Third Party Advisory
https://groups.google.com/d/topic/kubernetes-security-announce/kEK27tqqs30/discussionMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX/
https://security.netapp.com/advisory/ntap-20200724-0005/Third Party Advisory

Timeline

Published: Jun 5, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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