Medium
Security advisory
An incorrect permissions check was discovered in libvirt 4.8.0 and above. The readonly permission was allowed to invoke APIs depending on the guest agent, which could lead to potentially disclosing unintended information or denial of service by causing libvirt to block.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-3886
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 04:18 UTC · Revision 1
Source evidence
An incorrect permissions check was discovered in libvirt 4.8.0 and above. The readonly permission was allowed to invoke APIs depending on the guest agent, which could lead to potentially disclosing unintended information or denial of service by causing libvirt to block.
osv:CVE-2019-3886
Complete source record
{
"id": "4b0e980a255a72c1b6ec62bfd0f341b3a31bc3cce09985091a8ef953efecad38",
"url": "https://osv.dev/vulnerability/CVE-2019-3886",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-3886",
"summary": "An incorrect permissions check was discovered in libvirt 4.8.0 and above. The readonly permission was allowed to invoke APIs depending on the guest agent, which could lead to potentially disclosing unintended information or denial of service by causing libvirt to block.",
"evidence": "osv:CVE-2019-3886",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2019-3886",
"aliases": [
"CVE-2019-3886"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/libvirt/libvirt",
"type": "GIT",
"events": [
{
"introduced": "5fa43c7f3b47ef0014f01bff6c799e8bba7e4c26"
},
{
"fixed": "4dbe481bf6514511f16482237c2ab963b4ad1b95"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.8.0"
},
{
"fixed": "5.3.0"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v4.8.0",
"v4.9.0",
"v4.10.0",
"v5.0.0",
"v5.2.0",
"v5.3.0-rc2",
"v5.3.0-rc1",
"CVE-2019-3886",
"v5.2.0-rc2",
"v5.2.0-rc1",
"v5.1.0",
"v5.1.0-rc2",
"v5.1.0-rc1",
"v5.0.0-rc2",
"v5.0.0-rc1",
"CVE-2019-3840",
"v4.10.0-rc2",
"v4.10.0-rc1",
"v4.9.0-rc1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-3886.json"
}
},
{
"ranges": [
{
"repo": "https://gitlab.com/libvirt/libvirt",
"type": "GIT",
"events": [
{
"introduced": "5fa43c7f3b47ef0014f01bff6c799e8bba7e4c26"
},
{
"fixed": "4dbe481bf6514511f16482237c2ab963b4ad1b95"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.8.0"
},
{
"fixed": "5.3.0"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v4.8.0",
"v4.9.0",
"v4.10.0",
"v5.0.0",
"v5.2.0",
"v5.3.0-rc2",
"v5.3.0-rc1",
"CVE-2019-3886",
"v5.2.0-rc2",
"v5.2.0-rc1",
"v5.1.0",
"v5.1.0-rc2",
"v5.1.0-rc1",
"v5.0.0-rc2",
"v5.0.0-rc1",
"CVE-2019-3840",
"v4.10.0-rc2",
"v4.10.0-rc1",
"v4.9.0-rc1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-3886.json"
}
}
],
"modified": "2026-10-24T10:30:16.860804016Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CYMNKXAUBZCFBBPFH64FJPH5EJH4GSU2/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5DHYIFECZ7BMVXK4EP4FDFZXK7I5MZH/",
"https://access.redhat.com/errata/RHBA-2019:3723",
"https://usn.ubuntu.com/4021-1/",
"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3886"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "29"
},
{
"last_affected": "29"
},
{
"introduced": "30"
},
{
"last_affected": "30"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*"
],
"vendor_product": "opensuse:leap",
"extracted_events": [
{
"range": [
{
"introduced": "42.3"
},
{
"last_affected": "42.3"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2019-3886",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 429431,
"published_at": "2019-04-04T16:29:03.43+00:00"
}