kubernetes — security advisory
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.
- Products
- kubernetes
- Affected versions
- Not specified
- Fixed versions
- 1.20.5+really1.20.2-1
- CVEs
- CVE-2023-2431
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 15:45 UTC · Revision 1
Source evidence
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.
osv:DEBIAN-CVE-2023-2431
kubernetes
Fixed versions: 1.20.5+really1.20.2-1
kubernetes
Fixed versions: 1.20.5+really1.20.2-1
kubernetes
Fixed versions: 1.20.5+really1.20.2-1
Complete source record
{
"id": "7ce58f64ab97ea6ae4d3a89a5a9fc1111d5cf6c59f3bf5e1f8be894c66a24ff1",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-2431",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2023-2431",
"summary": "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.",
"evidence": "osv:DEBIAN-CVE-2023-2431",
"products": [
{
"name": {
"value": "kubernetes",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.20.5+really1.20.2-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "kubernetes",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.20.5+really1.20.2-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "kubernetes",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.20.5+really1.20.2-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2023-2431",
"aliases": [
"DEBIAN-CVE-2023-2431"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.20.5+really1.20.2-1"
}
]
}
],
"package": {
"name": "kubernetes",
"purl": "pkg:deb/debian/kubernetes?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-2431.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.20.5+really1.20.2-1"
}
]
}
],
"package": {
"name": "kubernetes",
"purl": "pkg:deb/debian/kubernetes?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-2431.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.20.5+really1.20.2-1"
}
]
}
],
"package": {
"name": "kubernetes",
"purl": "pkg:deb/debian/kubernetes?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-2431.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T18:01:36.936018702Z",
"provider": "osv",
"upstream": [
"CVE-2023-2431"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2023-2431"
]
},
"related_cves": [
{
"value": "CVE-2023-2431",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 455600,
"published_at": "2023-06-16T08:15:08.77+00:00"
}