HighFix available
Security fix for CVE-2026-49478 applied in: cosign 2.6.5-r0, cosign 3.1.1-r1, kyverno 1.16.4-r3, kyverno 1.17.2-r2, kyverno 1.18.1-r1, kyverno 1.18.1-r2, tekton-chains 0.25.2-r1, tekton-chains 0.26.5-
Type: advisorySources: OSV
CVE-2026-49478 affects multiple packages. This issue is resolved in later releases. See references for individual vulnerability details.
- Products
- cosign, kyverno, tekton-chains, tekton-chains-fips, tkn
- Affected versions
- Not specified
- Fixed versions
- 0.24.0-r1, 0.25.2-r1, 0.26.5-r1, 0.42.2-r1, 0.43.2-r1, 0.44.2-r1, 1.16.4-r3, 1.17.2-r2, 1.18.1-r1, 1.18.1-r2, 2.6.5-r0, 3.1.1-r1
- CVEs
- CVE-2026-49478
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 28 Oct 2026, 10:48 UTC · Revision 1
Source evidence
Security fix for CVE-2026-49478 applied in: cosign 2.6.5-r0, cosign 3.1.1-r1, kyverno 1.16.4-r3, kyverno 1.17.2-r2, kyverno 1.18.1-r1, kyverno 1.18.1-r2, tekton-chains 0.25.2-r1, tekton-chains 0.26.5-
core-osv · Original sourcePublished 18 Sept 2026, 09:55 UTC
CVE-2026-49478 affects multiple packages. This issue is resolved in later releases. See references for individual vulnerability details.
osv:CLEANSTART-2026-IH01456
cosign
Fixed versions: 2.6.5-r0
cosign
Fixed versions: 3.1.1-r1
kyverno
Fixed versions: 1.16.4-r3
kyverno
Fixed versions: 1.17.2-r2
kyverno
Fixed versions: 1.18.1-r1
kyverno
Fixed versions: 1.18.1-r2
tekton-chains
Fixed versions: 0.25.2-r1
tekton-chains
Fixed versions: 0.26.5-r1
tekton-chains-fips
Fixed versions: 0.24.0-r1
tekton-chains-fips
Fixed versions: 0.25.2-r1
tekton-chains-fips
Fixed versions: 0.26.5-r1
tkn
Fixed versions: 0.42.2-r1
tkn
Fixed versions: 0.43.2-r1
tkn
Fixed versions: 0.44.2-r1
Complete source record
{
"id": "9cf7b6890fa3e244cc7d70062b0ea09e8c00f3911e2f1ea9e8fc127d2d362c47",
"url": "https://osv.dev/vulnerability/CLEANSTART-2026-IH01456",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Security fix for CVE-2026-49478 applied in: cosign 2.6.5-r0, cosign 3.1.1-r1, kyverno 1.16.4-r3, kyverno 1.17.2-r2, kyverno 1.18.1-r1, kyverno 1.18.1-r2, tekton-chains 0.25.2-r1, tekton-chains 0.26.5-",
"summary": "CVE-2026-49478 affects multiple packages. This issue is resolved in later releases. See references for individual vulnerability details.",
"evidence": "osv:CLEANSTART-2026-IH01456",
"products": [
{
"name": {
"value": "cosign",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.6.5-r0",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "cosign",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.1.1-r1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "kyverno",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.16.4-r3",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "kyverno",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.17.2-r2",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "kyverno",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.18.1-r1",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "kyverno",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.18.1-r2",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tekton-chains",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.25.2-r1",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tekton-chains",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.26.5-r1",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tekton-chains-fips",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.24.0-r1",
"evidence": "/affected/8/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tekton-chains-fips",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.25.2-r1",
"evidence": "/affected/9/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tekton-chains-fips",
"evidence": "/affected/10/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.26.5-r1",
"evidence": "/affected/10/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tkn",
"evidence": "/affected/11/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.42.2-r1",
"evidence": "/affected/11/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tkn",
"evidence": "/affected/12/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.43.2-r1",
"evidence": "/affected/12/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tkn",
"evidence": "/affected/13/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.44.2-r1",
"evidence": "/affected/13/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "CLEANSTART-2026-IH01456",
"aliases": [
"CLEANSTART-2026-IH01456"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.6.5-r0"
}
]
}
],
"package": {
"name": "cosign",
"purl": "pkg:apk/cleanstart/cosign",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-IH01456.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.1.1-r1"
}
]
}
],
"package": {
"name": "cosign",
"purl": "pkg:apk/cleanstart/cosign",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-IH01456.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.16.4-r3"
}
]
}
],
"package": {
"name": "kyverno",
"purl": "pkg:apk/cleanstart/kyverno",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-IH01456.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.17.2-r2"
}
]
}
],
"package": {
"name": "kyverno",
"purl": "pkg:apk/cleanstart/kyverno",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-IH01456.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.18.1-r1"
}
]
}
],
"package": {
"name": "kyverno",
"purl": "pkg:apk/cleanstart/kyverno",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-IH01456.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.18.1-r2"
}
]
}
],
"package": {
"name": "kyverno",
"purl": "pkg:apk/cleanstart/kyverno",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-IH01456.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.25.2-r1"
}
]
}
],
"package": {
"name": "tekton-chains",
"purl": "pkg:apk/cleanstart/tekton-chains",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-IH01456.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.26.5-r1"
}
]
}
],
"package": {
"name": "tekton-chains",
"purl": "pkg:apk/cleanstart/tekton-chains",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-IH01456.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.24.0-r1"
}
]
}
],
"package": {
"name": "tekton-chains-fips",
"purl": "pkg:apk/cleanstart/tekton-chains-fips",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-IH01456.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.25.2-r1"
}
]
}
],
"package": {
"name": "tekton-chains-fips",
"purl": "pkg:apk/cleanstart/tekton-chains-fips",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-IH01456.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.26.5-r1"
}
]
}
],
"package": {
"name": "tekton-chains-fips",
"purl": "pkg:apk/cleanstart/tekton-chains-fips",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-IH01456.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.42.2-r1"
}
]
}
],
"package": {
"name": "tkn",
"purl": "pkg:apk/cleanstart/tkn",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-IH01456.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.43.2-r1"
}
]
}
],
"package": {
"name": "tkn",
"purl": "pkg:apk/cleanstart/tkn",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-IH01456.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.44.2-r1"
}
]
}
],
"package": {
"name": "tkn",
"purl": "pkg:apk/cleanstart/tkn",
"ecosystem": "CleanStart"
},
"database_specific": {
"source": "https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-IH01456.json"
}
}
],
"modified": "2026-10-09T07:46:11.006201064Z",
"provider": "osv",
"upstream": [
"CVE-2026-49478"
],
"references": [
"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-IH01456.json",
"https://osv.dev/vulnerability/CVE-2026-49478",
"https://nvd.nist.gov/vuln/detail/CVE-2026-49478"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2026-49478",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 109466,
"published_at": "2026-09-18T09:55:31.936+00:00"
}