Medium
Security advisory
Kata Containers doesn't restrict containers from accessing the guest's root filesystem device. Malicious containers can exploit this to gain code execution on the guest and masquerade as the kata-agent. This issue affects Kata Containers 1.11 versions earlier than 1.11.1; Kata Containers 1.10 versions earlier than 1.10.5; and Kata Containers 1.9 and earlier versions.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-2023
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 08:53 UTC · Revision 1
Source evidence
Kata Containers doesn't restrict containers from accessing the guest's root filesystem device. Malicious containers can exploit this to gain code execution on the guest and masquerade as the kata-agent. This issue affects Kata Containers 1.11 versions earlier than 1.11.1; Kata Containers 1.10 versions earlier than 1.10.5; and Kata Containers 1.9 and earlier versions.
osv:CVE-2020-2023
Complete source record
{
"id": "94ad7182386217722c02a81f689dfde62804766ec3ee80afdd9d5c0291f2252b",
"url": "https://osv.dev/vulnerability/CVE-2020-2023",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-2023",
"summary": "Kata Containers doesn't restrict containers from accessing the guest's root filesystem device. Malicious containers can exploit this to gain code execution on the guest and masquerade as the kata-agent. This issue affects Kata Containers 1.11 versions earlier than 1.11.1; Kata Containers 1.10 versions earlier than 1.10.5; and Kata Containers 1.9 and earlier versions.",
"evidence": "osv:CVE-2020-2023",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2020-2023",
"aliases": [
"CVE-2020-2023",
"GHSA-6978-vg2j-cc9q"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/kata-containers/runtime",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "8ff5bdc5386a35f4779661c2f214b28b614bb276"
},
{
"introduced": "ebe9677f23b574c5defacf57456d221d8ce901f2"
},
{
"fixed": "ecb69a3f67ec97d071e17b95cbe3d06d270bf982"
},
{
"introduced": "23e554b316aa994c6f48c9b1bd84060629fd6361"
},
{
"fixed": "984ccea48a1badd2863a68f91c8d95e229898095"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:katacontainers:runtime:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "1.9"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:katacontainers:runtime:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.10"
},
{
"fixed": "1.10.5"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:katacontainers:runtime:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.11"
},
{
"fixed": "1.11.1"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "ecb69a3f67ec97d071e17b95cbe3d06d270bf982"
}
],
"source": "REFERENCES_TAG",
"original_tag": "1.10.5"
},
{
"range": [
{
"fixed": "984ccea48a1badd2863a68f91c8d95e229898095"
}
],
"source": "REFERENCES_TAG",
"original_tag": "1.11.1"
}
]
}
}
],
"versions": [
"1.10.4",
"1.11.0",
"1.10.3",
"1.10.2",
"1.10.1",
"1.10.0",
"1.9.0",
"1.9.0-rc0",
"1.9.0-alpha2",
"1.9.0-alpha1",
"1.9.0-alpha0",
"1.8.0-rc0",
"1.8.0-alpha2",
"1.8.0-alpha1",
"1.8.0-alpha0",
"1.7.0",
"1.7.0-rc1",
"1.7.0-alpha1",
"1.7.0-alpha0",
"1.6.0-rc2",
"1.6.0-rc1",
"1.5.0",
"1.5.0-rc2",
"1.4.0",
"1.5.0-rc1",
"1.3.0",
"1.3.0-rc1",
"1.3.0-rc0",
"1.2.0",
"1.1.0",
"1.0.0",
"0.3.0",
"0.2.0",
"0.0.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-2023.json"
}
}
],
"modified": "2026-10-24T10:50:38.320039729Z",
"provider": "osv",
"references": [
"https://github.com/kata-containers/agent/issues/791",
"https://github.com/kata-containers/runtime/releases/tag/1.10.5",
"https://github.com/kata-containers/runtime/releases/tag/1.11.1",
"https://github.com/kata-containers/agent/pull/792",
"https://github.com/kata-containers/runtime/issues/2488",
"https://github.com/kata-containers/runtime/pull/2477",
"https://github.com/kata-containers/runtime/pull/2487"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2020-2023",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 442375,
"published_at": "2020-06-10T18:15:11.28+00:00"
}