High
Security advisory
A malicious guest compromised before a container creation (e.g. a malicious guest image or a guest running multiple containers) can trick the kata runtime into mounting the untrusted container filesystem on any host path, potentially allowing for code execution on the host. This issue affects: Kata Containers 1.11 versions earlier than 1.11.1; Kata Containers 1.10 versions earlier than 1.10.5; Kata Containers 1.9 and earlier versions.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-2026
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 10:56 UTC · Revision 1
Source evidence
A malicious guest compromised before a container creation (e.g. a malicious guest image or a guest running multiple containers) can trick the kata runtime into mounting the untrusted container filesystem on any host path, potentially allowing for code execution on the host. This issue affects: Kata Containers 1.11 versions earlier than 1.11.1; Kata Containers 1.10 versions earlier than 1.10.5; Kata Containers 1.9 and earlier versions.
osv:CVE-2020-2026
Complete source record
{
"id": "9f85704fe81298b5a9d3708cc2625216caa0825e3e75ce18c75085657dd4c9c5",
"url": "https://osv.dev/vulnerability/CVE-2020-2026",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-2026",
"summary": "A malicious guest compromised before a container creation (e.g. a malicious guest image or a guest running multiple containers) can trick the kata runtime into mounting the untrusted container filesystem on any host path, potentially allowing for code execution on the host. This issue affects: Kata Containers 1.11 versions earlier than 1.11.1; Kata Containers 1.10 versions earlier than 1.10.5; Kata Containers 1.9 and earlier versions.",
"evidence": "osv:CVE-2020-2026",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2020-2026",
"aliases": [
"CVE-2020-2026",
"GHSA-877x-32pm-p28x"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
}
],
"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-2020-2026.json"
}
}
],
"modified": "2026-10-20T10:52:08.152332124Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2P7FHA4AF6Y6PAVJBTTQPUEHXZQUOF3P/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6JPBKAQBF3OR72N55GWM2TDYQP2OHK6H/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6W5MKF7HSAIL2AX2BX6RV4WWVGUIKVLS/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJAMOVB7DSOGX7J26QH5HZKU7GSSX2VU/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QNJHSSPCKUGJDVXXIXK2JUWCRJDQX7CE/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWACJQSMY5BVDMVTF3FBN7HZSOSFOG3Q/",
"https://github.com/kata-containers/runtime/issues/2712",
"https://github.com/kata-containers/runtime/pull/2713",
"https://github.com/kata-containers/runtime/releases/tag/1.10.5",
"https://github.com/kata-containers/runtime/releases/tag/1.11.1"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "31"
},
{
"last_affected": "31"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-2026",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 383373,
"published_at": "2020-06-10T18:15:11.36+00:00"
}