UnratedFix available
libvirt: Fix of 2 CVEs
Type: advisorySources: OSV
- CVE-2026-63622: do not follow symlinks in virFileChownFiles - CVE-2026-18917: fix integer overflow in virNodeGetFreePages RPC handler
- Products
- libvirt, libvirt-client, libvirt-client-qemu, libvirt-daemon, libvirt-daemon-config-network, libvirt-daemon-config-nwfilter, libvirt-daemon-driver-interface, libvirt-daemon-driver-network, libvirt-daemon-driver-nodedev, libvirt-daemon-driver-nwfilter, libvirt-daemon-driver-qemu, libvirt-daemon-driver-secret, libvirt-daemon-driver-storage, libvirt-daemon-driver-storage-core, libvirt-daemon-driver-storage-disk, libvirt-daemon-driver-storage-iscsi, libvirt-daemon-driver-storage-logical, libvirt-daemon-driver-storage-mpath, libvirt-daemon-driver-storage-rbd, libvirt-daemon-driver-storage-scsi, libvirt-daemon-kvm, libvirt-devel, libvirt-docs, libvirt-libs, libvirt-lock-sanlock, libvirt-nss, libvirt-wireshark
- Affected versions
- Not specified
- Fixed versions
- 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
- CVEs
- CVE-2026-18917, CVE-2026-63622
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:58 UTC · Revision 1
Source evidence
- CVE-2026-63622: do not follow symlinks in virFileChownFiles - CVE-2026-18917: fix integer overflow in virNodeGetFreePages RPC handler
osv:CLSA-2026-1791404406
libvirt
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-client
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-client-qemu
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-daemon
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-daemon-config-network
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-daemon-config-nwfilter
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-daemon-driver-interface
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-daemon-driver-network
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-daemon-driver-nodedev
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-daemon-driver-nwfilter
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-daemon-driver-qemu
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-daemon-driver-secret
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-daemon-driver-storage
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-daemon-driver-storage-core
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-daemon-driver-storage-disk
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-daemon-driver-storage-iscsi
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-daemon-driver-storage-logical
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-daemon-driver-storage-mpath
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-daemon-driver-storage-rbd
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-daemon-driver-storage-scsi
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-daemon-kvm
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-devel
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-docs
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-libs
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-lock-sanlock
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-nss
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
libvirt-wireshark
Fixed versions: 9.0.0-10.3.el9_2.alma.1.tuxcare.els5
Complete source record
{
"id": "c38bbc58fba704758a63daa8b512eacc51e7b2dacbc3840187534a080bb52e95",
"url": "https://osv.dev/vulnerability/CLSA-2026-1791404406",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "libvirt: Fix of 2 CVEs",
"summary": "- CVE-2026-63622: do not follow symlinks in virFileChownFiles - CVE-2026-18917: fix integer overflow in virNodeGetFreePages RPC handler",
"evidence": "osv:CLSA-2026-1791404406",
"products": [
{
"name": {
"value": "libvirt",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-client",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-client-qemu",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-config-network",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-config-nwfilter",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-interface",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-network",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-nodedev",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/8/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-nwfilter",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/9/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-qemu",
"evidence": "/affected/10/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/10/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-secret",
"evidence": "/affected/11/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/11/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-storage",
"evidence": "/affected/12/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/12/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-storage-core",
"evidence": "/affected/13/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/13/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-storage-disk",
"evidence": "/affected/14/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/14/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-storage-iscsi",
"evidence": "/affected/15/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/15/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-storage-logical",
"evidence": "/affected/16/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/16/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-storage-mpath",
"evidence": "/affected/17/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/17/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-storage-rbd",
"evidence": "/affected/18/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/18/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-storage-scsi",
"evidence": "/affected/19/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/19/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-kvm",
"evidence": "/affected/20/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/20/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-devel",
"evidence": "/affected/21/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/21/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-docs",
"evidence": "/affected/22/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/22/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-libs",
"evidence": "/affected/23/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/23/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-lock-sanlock",
"evidence": "/affected/24/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/24/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-nss",
"evidence": "/affected/25/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/25/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-wireshark",
"evidence": "/affected/26/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5",
"evidence": "/affected/26/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1791404406",
"aliases": [
"CLSA-2026-1791404406"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5"
}
]
}
],
"package": {
"name": "libvirt",
"purl": "pkg:rpm/tuxcare/libvirt?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1791404406.json"
}
},
{
"ranges": [
{
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},
{
"fixed": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5"
}
]
}
],
"package": {
"name": "libvirt-client",
"purl": "pkg:rpm/tuxcare/libvirt-client?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1791404406.json"
}
},
{
"ranges": [
{
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"events": [
{
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},
{
"fixed": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5"
}
]
}
],
"package": {
"name": "libvirt-client-qemu",
"purl": "pkg:rpm/tuxcare/libvirt-client-qemu?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1791404406.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5"
}
]
}
],
"package": {
"name": "libvirt-daemon",
"purl": "pkg:rpm/tuxcare/libvirt-daemon?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1791404406.json"
}
},
{
"ranges": [
{
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"events": [
{
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},
{
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}
]
}
],
"package": {
"name": "libvirt-daemon-config-network",
"purl": "pkg:rpm/tuxcare/libvirt-daemon-config-network?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1791404406.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5"
}
]
}
],
"package": {
"name": "libvirt-daemon-config-nwfilter",
"purl": "pkg:rpm/tuxcare/libvirt-daemon-config-nwfilter?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1791404406.json"
}
},
{
"ranges": [
{
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"events": [
{
"introduced": "0"
},
{
"fixed": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5"
}
]
}
],
"package": {
"name": "libvirt-daemon-driver-interface",
"purl": "pkg:rpm/tuxcare/libvirt-daemon-driver-interface?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1791404406.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5"
}
]
}
],
"package": {
"name": "libvirt-daemon-driver-network",
"purl": "pkg:rpm/tuxcare/libvirt-daemon-driver-network?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1791404406.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5"
}
]
}
],
"package": {
"name": "libvirt-daemon-driver-nodedev",
"purl": "pkg:rpm/tuxcare/libvirt-daemon-driver-nodedev?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1791404406.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5"
}
]
}
],
"package": {
"name": "libvirt-daemon-driver-nwfilter",
"purl": "pkg:rpm/tuxcare/libvirt-daemon-driver-nwfilter?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1791404406.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5"
}
]
}
],
"package": {
"name": "libvirt-daemon-driver-qemu",
"purl": "pkg:rpm/tuxcare/libvirt-daemon-driver-qemu?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1791404406.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5"
}
]
}
],
"package": {
"name": "libvirt-daemon-driver-secret",
"purl": "pkg:rpm/tuxcare/libvirt-daemon-driver-secret?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1791404406.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "9.0.0-10.3.el9_2.alma.1.tuxcare.els5"
}
]
}
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],
"modified": "2026-10-26T09:43:55.652569439Z",
"provider": "osv",
"upstream": [
"CVE-2026-18917",
"CVE-2026-63622"
],
"references": [
"https://errata.tuxcare.com/els_os/almalinux9.2esu/CLSA-2026-1791404406.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-18917",
"https://nvd.nist.gov/vuln/detail/CVE-2026-63622"
]
},
"related_cves": [
{
"value": "CVE-2026-18917",
"evidence": "/upstream"
},
{
"value": "CVE-2026-63622",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 450250,
"published_at": "2026-10-07T20:20:19+00:00"
}