CVE-2020-8555
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…
Does this matter?
Lower severity and a low EPSS score (3.68%). Track it; it rarely justifies an emergency change on its own.
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).
- CVSS 3.1
- 6.3 MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
- EPSS
- 3.68% probability · 90th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-918
- Affected
- kubernetes/kubernetes · fedoraproject/fedora
- Source
- jordan@liggitt.net
EPSS 3.7% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.