HighFix available
Red Hat Security Advisory: OpenShift Container Platform 4.21.35 packages and security update
Type: advisorySources: OSV
- Products
- cri-o, cri-o-debuginfo, cri-o-debugsource, openshift, openshift-hyperkube, openshift-kube-apiserver, openshift-kube-controller-manager, openshift-kube-scheduler, openshift-kubelet, ose-azure-acr-image-credential-provider
- Affected versions
- Not specified
- Fixed versions
- 0:1.34.14-7.rhaos4.21.gitdcc865d.el9, 0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el10, 0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el8, 0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el9, 0:4.21.0-202609221600.p2.g53d73b1.assembly.stream.el10, 0:4.21.0-202609221600.p2.g53d73b1.assembly.stream.el8, 0:4.21.0-202609221600.p2.g53d73b1.assembly.stream.el9
- CVEs
- CVE-2026-33814, CVE-2026-33818, CVE-2026-42504, CVE-2026-56858, CVE-2026-56859, CVE-2026-56860, CVE-2026-56862
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 09:29 UTC · Revision 1
Source evidence
Red Hat Security Advisory: OpenShift Container Platform 4.21.35 packages and security update
core-osv · Original sourcePublished 30 Sept 2026, 10:17 UTC
Red Hat Security Advisory: OpenShift Container Platform 4.21.35 packages and security update
osv:RHSA-2026:71443
ose-azure-acr-image-credential-provider
Fixed versions: 0:4.21.0-202609221600.p2.g53d73b1.assembly.stream.el10
ose-azure-acr-image-credential-provider
Fixed versions: 0:4.21.0-202609221600.p2.g53d73b1.assembly.stream.el8
ose-azure-acr-image-credential-provider
Fixed versions: 0:4.21.0-202609221600.p2.g53d73b1.assembly.stream.el9
openshift
Fixed versions: 0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el10
openshift-hyperkube
Fixed versions: 0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el10
openshift-kube-apiserver
Fixed versions: 0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el10
openshift-kube-controller-manager
Fixed versions: 0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el10
openshift-kube-scheduler
Fixed versions: 0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el10
openshift-kubelet
Fixed versions: 0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el10
openshift
Fixed versions: 0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el8
openshift-hyperkube
Fixed versions: 0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el8
cri-o
Fixed versions: 0:1.34.14-7.rhaos4.21.gitdcc865d.el9
cri-o-debuginfo
Fixed versions: 0:1.34.14-7.rhaos4.21.gitdcc865d.el9
cri-o-debugsource
Fixed versions: 0:1.34.14-7.rhaos4.21.gitdcc865d.el9
openshift
Fixed versions: 0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el9
openshift-hyperkube
Fixed versions: 0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el9
openshift-kube-apiserver
Fixed versions: 0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el9
openshift-kube-controller-manager
Fixed versions: 0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el9
openshift-kube-scheduler
Fixed versions: 0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el9
openshift-kubelet
Fixed versions: 0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el9
Complete source record
{
"id": "dd9a5fb16232b8404f8b4920d08b87d2f390237c88548f7ab3298be71abc6c0f",
"url": "https://osv.dev/vulnerability/RHSA-2026%3A71443",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Red Hat Security Advisory: OpenShift Container Platform 4.21.35 packages and security update",
"summary": "Red Hat Security Advisory: OpenShift Container Platform 4.21.35 packages and security update",
"evidence": "osv:RHSA-2026:71443",
"products": [
{
"name": {
"value": "ose-azure-acr-image-credential-provider",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:4.21.0-202609221600.p2.g53d73b1.assembly.stream.el10",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "ose-azure-acr-image-credential-provider",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:4.21.0-202609221600.p2.g53d73b1.assembly.stream.el8",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "ose-azure-acr-image-credential-provider",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:4.21.0-202609221600.p2.g53d73b1.assembly.stream.el9",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openshift",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el10",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openshift-hyperkube",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el10",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openshift-kube-apiserver",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el10",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openshift-kube-controller-manager",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el10",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openshift-kube-scheduler",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el10",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openshift-kubelet",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el10",
"evidence": "/affected/8/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openshift",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el8",
"evidence": "/affected/9/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openshift-hyperkube",
"evidence": "/affected/10/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el8",
"evidence": "/affected/10/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "cri-o",
"evidence": "/affected/11/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:1.34.14-7.rhaos4.21.gitdcc865d.el9",
"evidence": "/affected/11/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "cri-o-debuginfo",
"evidence": "/affected/12/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:1.34.14-7.rhaos4.21.gitdcc865d.el9",
"evidence": "/affected/12/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "cri-o-debugsource",
"evidence": "/affected/13/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:1.34.14-7.rhaos4.21.gitdcc865d.el9",
"evidence": "/affected/13/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openshift",
"evidence": "/affected/14/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el9",
"evidence": "/affected/14/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openshift-hyperkube",
"evidence": "/affected/15/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el9",
"evidence": "/affected/15/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openshift-kube-apiserver",
"evidence": "/affected/16/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el9",
"evidence": "/affected/16/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openshift-kube-controller-manager",
"evidence": "/affected/17/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el9",
"evidence": "/affected/17/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openshift-kube-scheduler",
"evidence": "/affected/18/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el9",
"evidence": "/affected/18/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openshift-kubelet",
"evidence": "/affected/19/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el9",
"evidence": "/affected/19/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "RHSA-2026:71443",
"aliases": [
"RHSA-2026:71443"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:4.21.0-202609221600.p2.g53d73b1.assembly.stream.el10"
}
]
}
],
"package": {
"name": "ose-azure-acr-image-credential-provider",
"purl": "pkg:rpm/redhat/ose-azure-acr-image-credential-provider",
"ecosystem": "Red Hat:openshift:4.21::el10"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:71443.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:4.21.0-202609221600.p2.g53d73b1.assembly.stream.el8"
}
]
}
],
"package": {
"name": "ose-azure-acr-image-credential-provider",
"purl": "pkg:rpm/redhat/ose-azure-acr-image-credential-provider",
"ecosystem": "Red Hat:openshift:4.21::el8"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:71443.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "0:4.21.0-202609221600.p2.g53d73b1.assembly.stream.el9"
}
]
}
],
"package": {
"name": "ose-azure-acr-image-credential-provider",
"purl": "pkg:rpm/redhat/ose-azure-acr-image-credential-provider",
"ecosystem": "Red Hat:openshift:4.21::el9"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:71443.json"
}
},
{
"ranges": [
{
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"events": [
{
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},
{
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}
]
}
],
"package": {
"name": "openshift",
"purl": "pkg:rpm/redhat/openshift",
"ecosystem": "Red Hat:openshift:4.21::el10"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:71443.json"
}
},
{
"ranges": [
{
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"events": [
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{
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}
]
}
],
"package": {
"name": "openshift-hyperkube",
"purl": "pkg:rpm/redhat/openshift-hyperkube",
"ecosystem": "Red Hat:openshift:4.21::el10"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:71443.json"
}
},
{
"ranges": [
{
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"events": [
{
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},
{
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}
]
}
],
"package": {
"name": "openshift-kube-apiserver",
"purl": "pkg:rpm/redhat/openshift-kube-apiserver",
"ecosystem": "Red Hat:openshift:4.21::el10"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:71443.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el10"
}
]
}
],
"package": {
"name": "openshift-kube-controller-manager",
"purl": "pkg:rpm/redhat/openshift-kube-controller-manager",
"ecosystem": "Red Hat:openshift:4.21::el10"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:71443.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
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}
]
}
],
"package": {
"name": "openshift-kube-scheduler",
"purl": "pkg:rpm/redhat/openshift-kube-scheduler",
"ecosystem": "Red Hat:openshift:4.21::el10"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:71443.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
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}
]
}
],
"package": {
"name": "openshift-kubelet",
"purl": "pkg:rpm/redhat/openshift-kubelet",
"ecosystem": "Red Hat:openshift:4.21::el10"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:71443.json"
}
},
{
"ranges": [
{
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"events": [
{
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},
{
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}
]
}
],
"package": {
"name": "openshift",
"purl": "pkg:rpm/redhat/openshift",
"ecosystem": "Red Hat:openshift:4.21::el8"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:71443.json"
}
},
{
"ranges": [
{
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"events": [
{
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},
{
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}
]
}
],
"package": {
"name": "openshift-hyperkube",
"purl": "pkg:rpm/redhat/openshift-hyperkube",
"ecosystem": "Red Hat:openshift:4.21::el8"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:71443.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "0:1.34.14-7.rhaos4.21.gitdcc865d.el9"
}
]
}
],
"package": {
"name": "cri-o",
"purl": "pkg:rpm/redhat/cri-o",
"ecosystem": "Red Hat:openshift:4.21::el9"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:71443.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
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}
]
}
],
"package": {
"name": "cri-o-debuginfo",
"purl": "pkg:rpm/redhat/cri-o-debuginfo",
"ecosystem": "Red Hat:openshift:4.21::el9"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:71443.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
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}
]
}
],
"package": {
"name": "cri-o-debugsource",
"purl": "pkg:rpm/redhat/cri-o-debugsource",
"ecosystem": "Red Hat:openshift:4.21::el9"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:71443.json"
}
},
{
"ranges": [
{
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"events": [
{
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},
{
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}
]
}
],
"package": {
"name": "openshift",
"purl": "pkg:rpm/redhat/openshift",
"ecosystem": "Red Hat:openshift:4.21::el9"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:71443.json"
}
},
{
"ranges": [
{
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"events": [
{
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{
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}
]
}
],
"package": {
"name": "openshift-hyperkube",
"purl": "pkg:rpm/redhat/openshift-hyperkube",
"ecosystem": "Red Hat:openshift:4.21::el9"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:71443.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el9"
}
]
}
],
"package": {
"name": "openshift-kube-apiserver",
"purl": "pkg:rpm/redhat/openshift-kube-apiserver",
"ecosystem": "Red Hat:openshift:4.21::el9"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:71443.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el9"
}
]
}
],
"package": {
"name": "openshift-kube-controller-manager",
"purl": "pkg:rpm/redhat/openshift-kube-controller-manager",
"ecosystem": "Red Hat:openshift:4.21::el9"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:71443.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el9"
}
]
}
],
"package": {
"name": "openshift-kube-scheduler",
"purl": "pkg:rpm/redhat/openshift-kube-scheduler",
"ecosystem": "Red Hat:openshift:4.21::el9"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:71443.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:4.21.0-202609170630.p2.g601ff80.assembly.stream.el9"
}
]
}
],
"package": {
"name": "openshift-kubelet",
"purl": "pkg:rpm/redhat/openshift-kubelet",
"ecosystem": "Red Hat:openshift:4.21::el9"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:71443.json"
}
}
],
"modified": "2026-10-20T10:14:54Z",
"provider": "osv",
"upstream": [
"CVE-2026-33814",
"CVE-2026-33818",
"CVE-2026-42504",
"CVE-2026-56858",
"CVE-2026-56859",
"CVE-2026-56860",
"CVE-2026-56862"
],
"references": [
"https://access.redhat.com/errata/RHSA-2026:71443",
"https://access.redhat.com/security/updates/classification/#important",
"https://bugzilla.redhat.com/show_bug.cgi?id=2467815",
"https://bugzilla.redhat.com/show_bug.cgi?id=2484204",
"https://bugzilla.redhat.com/show_bug.cgi?id=2515815",
"https://bugzilla.redhat.com/show_bug.cgi?id=2515820",
"https://bugzilla.redhat.com/show_bug.cgi?id=2515838",
"https://bugzilla.redhat.com/show_bug.cgi?id=2515839",
"https://bugzilla.redhat.com/show_bug.cgi?id=2515840",
"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_71443.json",
"https://access.redhat.com/security/cve/CVE-2026-33814",
"https://www.cve.org/CVERecord?id=CVE-2026-33814",
"https://nvd.nist.gov/vuln/detail/CVE-2026-33814",
"https://go.dev/cl/761581",
"https://go.dev/cl/761640",
"https://go.dev/issue/78476",
"https://groups.google.com/g/golang-announce/c/qcCIEXso47M",
"https://pkg.go.dev/vuln/GO-2026-4918",
"https://access.redhat.com/security/cve/CVE-2026-33818",
"https://www.cve.org/CVERecord?id=CVE-2026-33818",
"https://nvd.nist.gov/vuln/detail/CVE-2026-33818",
"https://go.dev/cl/814980",
"https://go.dev/issue/80405",
"https://groups.google.com/g/golang-announce/c/94pEornpRlI",
"https://pkg.go.dev/vuln/GO-2026-5972",
"https://access.redhat.com/security/cve/CVE-2026-42504",
"https://www.cve.org/CVERecord?id=CVE-2026-42504",
"https://nvd.nist.gov/vuln/detail/CVE-2026-42504",
"https://go.dev/cl/774481",
"https://go.dev/issue/79217",
"https://groups.google.com/g/golang-announce/c/tKs3rmcBcKw",
"https://pkg.go.dev/vuln/GO-2026-5038",
"https://access.redhat.com/security/cve/CVE-2026-56858",
"https://www.cve.org/CVERecord?id=CVE-2026-56858",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56858",
"https://go.dev/cl/807100",
"https://go.dev/issue/80435",
"https://pkg.go.dev/vuln/GO-2026-6091",
"https://access.redhat.com/security/cve/CVE-2026-56859",
"https://www.cve.org/CVERecord?id=CVE-2026-56859",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56859",
"https://go.dev/cl/803320",
"https://go.dev/issue/80481",
"https://pkg.go.dev/vuln/GO-2026-6088",
"https://access.redhat.com/security/cve/CVE-2026-56860",
"https://www.cve.org/CVERecord?id=CVE-2026-56860",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56860",
"https://go.dev/cl/803681",
"https://go.dev/issue/80494",
"https://pkg.go.dev/vuln/GO-2026-6218",
"https://access.redhat.com/security/cve/CVE-2026-56862",
"https://www.cve.org/CVERecord?id=CVE-2026-56862",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56862",
"https://go.dev/cl/804261",
"https://go.dev/issue/80528",
"https://pkg.go.dev/vuln/GO-2026-6090"
]
},
"related_cves": [
{
"value": "CVE-2026-33814",
"evidence": "/upstream"
},
{
"value": "CVE-2026-33818",
"evidence": "/upstream"
},
{
"value": "CVE-2026-42504",
"evidence": "/upstream"
},
{
"value": "CVE-2026-56858",
"evidence": "/upstream"
},
{
"value": "CVE-2026-56859",
"evidence": "/upstream"
},
{
"value": "CVE-2026-56860",
"evidence": "/upstream"
},
{
"value": "CVE-2026-56862",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 378839,
"published_at": "2026-09-30T10:17:04+00:00"
}