CriticalFix available
Previously, DecodeElement would reset the depth counter causing it to never fire; this could lead to stack exhaustion
Type: advisorySources: OSV
CVE-2026-56859 affects multiple packages. Previously, DecodeElement would reset the depth counter causing it to never fire; this could lead to stack exhaustion. See references for individual vulnerability details.
- Products
- argo-workflows, kube-state-metrics-fips, kubernetes
- Affected versions
- Not specified
- Fixed versions
- 1.36.3-r3, 2.18.0-r3, 2.19.1-r1, 4.0.12-r1
- CVEs
- CVE-2026-56859
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 28 Oct 2026, 09:23 UTC · Revision 1
Source evidence
Previously, DecodeElement would reset the depth counter causing it to never fire; this could lead to stack exhaustion
core-osv · Original sourcePublished 29 Sept 2026, 00:37 UTC
CVE-2026-56859 affects multiple packages. Previously, DecodeElement would reset the depth counter causing it to never fire; this could lead to stack exhaustion. See references for individual vulnerability details.
osv:CLEANSTART-2026-TZ09110
kube-state-metrics-fips
Fixed versions: 2.18.0-r3
kube-state-metrics-fips
Fixed versions: 2.19.1-r1
kubernetes
Fixed versions: 1.36.3-r3
argo-workflows
Fixed versions: 4.0.12-r1
Complete source record
{
"id": "671c545a9fcc85848aa08cfb795d27dd335cb72a01548a246c84bdf271b9d0b5",
"url": "https://osv.dev/vulnerability/CLEANSTART-2026-TZ09110",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Previously, DecodeElement would reset the depth counter causing it to never fire; this could lead to stack exhaustion",
"summary": "CVE-2026-56859 affects multiple packages. Previously, DecodeElement would reset the depth counter causing it to never fire; this could lead to stack exhaustion. See references for individual vulnerability details.",
"evidence": "osv:CLEANSTART-2026-TZ09110",
"products": [
{
"name": {
"value": "kube-state-metrics-fips",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.18.0-r3",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "kube-state-metrics-fips",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.19.1-r1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "kubernetes",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.36.3-r3",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "argo-workflows",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.0.12-r1",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
}
],
"severity": "critical",
"structured": {
"id": "CLEANSTART-2026-TZ09110",
"aliases": [
"CLEANSTART-2026-TZ09110"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.18.0-r3"
}
]
}
],
"package": {
"name": "kube-state-metrics-fips",
"purl": "pkg:apk/cleanstart/kube-state-metrics-fips",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-TZ09110.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.19.1-r1"
}
]
}
],
"package": {
"name": "kube-state-metrics-fips",
"purl": "pkg:apk/cleanstart/kube-state-metrics-fips",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-TZ09110.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.36.3-r3"
}
]
}
],
"package": {
"name": "kubernetes",
"purl": "pkg:apk/cleanstart/kubernetes",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-TZ09110.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.0.12-r1"
}
]
}
],
"package": {
"name": "argo-workflows",
"purl": "pkg:apk/cleanstart/argo-workflows",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-TZ09110.json"
}
}
],
"modified": "2026-10-08T16:46:52.697815435Z",
"provider": "osv",
"upstream": [
"CVE-2026-56859"
],
"references": [
"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-TZ09110.json",
"https://osv.dev/vulnerability/CVE-2026-56859",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56859"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2026-56859",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 101263,
"published_at": "2026-09-29T00:37:01.091+00:00"
}