CVE-2021-25737
- Source
- https://cve.org/CVERecord?id=CVE-2021-25737
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-25737.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-25737
- Aliases
- Downstream
- Published
- 2021-09-06T12:15:07.673Z
- Modified
- 2026-02-07T05:14:46.524027Z
- Severity
-
- 4.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
- Summary
- [none]
- Details
-
A security issue was discovered in Kubernetes where a user may be able to redirect pod traffic to private networks on a Node. Kubernetes already prevents creation of Endpoint IPs in the localhost or link-local range, but the same validation was not performed on EndpointSlice IPs.
- References
-
- https://github.com/kubernetes/kubernetes/issues/102106
- https://groups.google.com/g/kubernetes-security-announce/c/xAiN3924thY
- https://security.netapp.com/advisory/ntap-20211004-0004/
- https://github.com/kubernetes/kubernetes/issues/102106
- https://groups.google.com/g/kubernetes-security-announce/c/xAiN3924thY
Affected packages
Git / github.com/kubernetes/kubelet
Git / github.com/kubernetes/kubernetes
Affected versions
v1.*
v1.19.0
v1.19.1
v1.19.1-rc.0
v1.19.10-rc.0
v1.19.2
v1.19.2-rc.0
v1.19.3
v1.19.3-rc.0
v1.19.4
v1.19.4-rc.0
v1.19.5
v1.19.5-rc.0
v1.19.6
v1.19.6-rc.0
v1.19.6-rc.1
v1.19.7
v1.19.7-rc.0
v1.19.8
v1.19.8-rc.0
v1.19.9
v1.19.9-rc.0
v1.20.0
v1.20.1
v1.20.1-rc.0
v1.20.1-rc.1
v1.20.2
v1.20.2-rc.0
v1.20.3
v1.20.3-rc.0
v1.20.4
v1.20.4-rc.0
v1.20.5
v1.20.5-rc.0
v1.20.6
v1.20.6-rc.0
v1.20.7-rc.0