What’s Vulnerable › Vulnerabilities

CVE-2023-2431: Bypass of seccomp profile enforcement

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-06-16 · updated 2026-06-17
• Weakness: CWE-1287

Description

A security issue was discovered in Kubelet that allows pods to bypass the seccomp profile enforcement. Pods that use localhost type for seccomp profile but specify an empty profile field, are affected by this issue. In this scenario, this vulnerability allows the pod to run in unconfined (seccomp disabled) mode. This bug affects Kubelet.

Affected products

• Fedoraproject Fedora: 38
• Kubernetes: before 1.24.14; from 1.25.0 before 1.25.10; from 1.26.0 before 1.26.5; from 1.27.0 before 1.27.2 — fixed in 1.24.14, 1.25.10, 1.26.5, 1.27.2

How to fix

Upgrade to a fixed version: Kubernetes 1.24.14, 1.25.10, 1.26.5, 1.27.2. Check the vendor advisory for mitigations.

References

• https://github.com/kubernetes/kubernetes/issues/118690
• https://groups.google.com/g/kubernetes-security-announce/c/QHmx0HOQa10
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/43HDSKBKPSW53OW647B5ETHRWFFNHSRQ/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XBX4RL4UOC7JHWWYB2AJCKSUM7EG5Y5G/
• https://github.com/kubernetes/kubernetes/issues/118690
• https://groups.google.com/g/kubernetes-security-announce/c/QHmx0HOQa10
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/43HDSKBKPSW53OW647B5ETHRWFFNHSRQ/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XBX4RL4UOC7JHWWYB2AJCKSUM7EG5Y5G/
• https://github.com/kubernetes/kubernetes/issues/118690

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