Medium
Security advisory
In Kubernetes, if the logging level is set to at least 9, authorization and bearer tokens will be written to log files. This can occur both in API server logs and client tool output like kubectl. This affects <= v1.19.3, <= v1.18.10, <= v1.17.13, < v1.20.0-alpha2.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-8565
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 08:57 UTC · Revision 1
Source evidence
In Kubernetes, if the logging level is set to at least 9, authorization and bearer tokens will be written to log files. This can occur both in API server logs and client tool output like kubectl. This affects <= v1.19.3, <= v1.18.10, <= v1.17.13, < v1.20.0-alpha2.
osv:CVE-2020-8565
Complete source record
{
"id": "ee7ef33f268f39d825a3f0f9b5d3a1beb6d78499ae61cf5d1324de5abaea4971",
"url": "https://osv.dev/vulnerability/CVE-2020-8565",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-8565",
"summary": "In Kubernetes, if the logging level is set to at least 9, authorization and bearer tokens will be written to log files. This can occur both in API server logs and client tool output like kubectl. This affects <= v1.19.3, <= v1.18.10, <= v1.17.13, < v1.20.0-alpha2.",
"evidence": "osv:CVE-2020-8565",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2020-8565",
"aliases": [
"CVE-2020-8565",
"GHSA-8cfg-vx93-jvxw",
"GO-2021-0064"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/kubernetes/kubelet",
"type": "GIT",
"events": [
{
"introduced": "f9974c2baa2d9ca25416d38e7ecfc7ff4d05d58e"
},
{
"last_affected": "e24c1e8df2dc66a36a852743b75e37a308aad8aa"
},
{
"introduced": "f0d06ae44a2e7ef0c05aecb6e7773222947dd156"
},
{
"last_affected": "c9dc8031b48c5f8f9af1ccefd41694b61eb24269"
},
{
"introduced": "1af8853567a0faecc59fbc4d7d2ddc9359ddde83"
},
{
"last_affected": "718969c3a78f519e13cbafce5da9b7ae5241e70e"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.17.0"
},
{
"last_affected": "1.17.13"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.18.0"
},
{
"last_affected": "1.18.10"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.19.0"
},
{
"last_affected": "1.19.3"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8565.json"
}
},
{
"ranges": [
{
"repo": "https://github.com/kubernetes/kubernetes",
"type": "GIT",
"events": [
{
"introduced": "70132b0f130acc0bed193d9ba59dd186f0e634cf"
},
{
"last_affected": "30d651da517185653e34e7ab99a792be6a3d9495"
},
{
"introduced": "9e991415386e4cf155a24b1da15becaa390438d8"
},
{
"last_affected": "62876fc6d93e891aa7fbe19771e6a6c03773b0f7"
},
{
"introduced": "e19964183377d0ec2052d1f1fa930c4d7575bd50"
},
{
"last_affected": "1e11e4a2108024935ecfcb2912226cedeafd99df"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.17.0"
},
{
"last_affected": "1.17.13"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.18.0"
},
{
"last_affected": "1.18.10"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.19.0"
},
{
"last_affected": "1.19.3"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v1.18.10",
"v1.17.13",
"v1.19.3",
"v1.18.10-rc.0",
"v1.17.13-rc.0",
"v1.19.3-rc.0",
"v1.18.9",
"v1.19.2",
"v1.17.12",
"v1.19.2-rc.0",
"v1.19.1",
"v1.19.1-rc.0",
"v1.19.0",
"v1.18.9-rc.0",
"v1.17.12-rc.0",
"v1.18.8",
"v1.17.11",
"v1.18.8-rc.1",
"v1.17.11-rc.1",
"v1.18.7-rc.0",
"v1.17.10-rc.0",
"v1.18.6",
"v1.17.9",
"v1.18.6-rc.0",
"v1.17.9-rc.0",
"v1.18.5",
"v1.17.8",
"v1.18.5-rc.1",
"v1.17.8-rc.1",
"v1.18.5-rc.0",
"v1.17.8-rc.0",
"v1.18.4",
"v1.17.7",
"v1.17.7-rc.0",
"v1.18.4-rc.0",
"v1.17.6",
"v1.18.3",
"v1.18.3-beta.0",
"v1.17.6-beta.0",
"v1.18.2",
"v1.17.5",
"v1.18.2-beta.0",
"v1.18.1",
"v1.18.1-beta.0",
"v1.18.0",
"v1.17.5-beta.0",
"v1.17.4",
"v1.17.4-beta.0",
"v1.17.3",
"v1.17.3-beta.0",
"v1.17.2",
"v1.17.2-beta.0",
"v1.17.1",
"v1.17.0",
"v1.17.1-beta.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8565.json"
}
}
],
"modified": "2026-10-24T10:51:23.751578257Z",
"provider": "osv",
"references": [
"https://github.com/kubernetes/kubernetes/issues/95623",
"https://groups.google.com/g/kubernetes-security-discuss/c/vm-HcrFUOCs/m/36utxAM5CwAJ"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2020-8565",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 442582,
"published_at": "2020-12-07T22:15:21.4+00:00"
}