Medium
Security advisory
DNS rebinding vulnerability found in etcd 3.3.1 and earlier. An attacker can control his DNS records to direct to localhost, and trick the browser into sending requests to localhost (or any other address).
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-1099
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 10:21 UTC · Revision 1
Source evidence
DNS rebinding vulnerability found in etcd 3.3.1 and earlier. An attacker can control his DNS records to direct to localhost, and trick the browser into sending requests to localhost (or any other address).
osv:CVE-2018-1099
Complete source record
{
"id": "fdc9d978a2f52dab089bddb8a326087a36d17be22752e9c8a26d9574c938fe88",
"url": "https://osv.dev/vulnerability/CVE-2018-1099",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-1099",
"summary": "DNS rebinding vulnerability found in etcd 3.3.1 and earlier. An attacker can control his DNS records to direct to localhost, and trick the browser into sending requests to localhost (or any other address).",
"evidence": "osv:CVE-2018-1099",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2018-1099",
"aliases": [
"CVE-2018-1099",
"GHSA-wf43-55jj-vwq8"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/etcd-io/etcd",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "28f3f26c0e303392556035b694f75768d449d33d"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:redhat:etcd:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "3.3.1"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v3.3.1",
"v3.3.0",
"v3.3.0-rc.4",
"v3.3.0-rc.3",
"v3.3.0-rc.2",
"v3.3.0-rc.1",
"v3.3.0-rc.0",
"v3.2.10_plus_git",
"v3.2.0_plus_git",
"v3.2.0+git",
"v3.2.0-rc.1",
"v3.2.0-rc.0",
"v3.1.0-rc.1",
"v3.1.0-rc.0",
"v3.1.0-alpha.1",
"v3.1.0-alpha.0",
"v3.0.0-beta.0",
"v2.3.0",
"v2.3.0-alpha.1",
"v2.3.0-alpha.0",
"v2.2.0",
"v2.2.0-rc.0",
"v2.2.0-alpha.1",
"v2.2.0-alpha.0",
"v2.1.1",
"v2.1.0",
"v2.1.0-rc.0",
"v2.1.0-alpha.1",
"v2.1.0-alpha.0",
"v2.0.4",
"v2.0.3",
"v2.0.2",
"v2.0.1",
"v2.0.0",
"v0.4.6",
"v2.0.0-rc.1",
"v0.5.0-alpha.5",
"v0.5.0-alpha.4",
"v0.5.0-alpha.3",
"v0.5.0-alpha.2",
"v0.5.0-alpha.1",
"v0.5.0-alpha.0",
"v0.4.5",
"v0.4.4",
"v0.4.3",
"v0.4.2",
"v0.4.1",
"v0.4.0",
"v0.3.0",
"v0.2.0-rc4",
"v0.2.0",
"v0.2.0-rc3",
"v0.2.0-rc2",
"v0.2.0-rc1",
"v0.1.2",
"v0.1.1",
"v0.1.0",
"0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-1099.json"
}
}
],
"modified": "2026-10-20T10:50:16.517376134Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JX7QTIT465BQGRGNCE74RATRQLKT2QE4/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UPGYHMSKDPW5GAMI7BEP3XQRVRLLBJKS/",
"https://bugzilla.redhat.com/show_bug.cgi?id=1552717",
"https://github.com/coreos/etcd/issues/9353"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "30"
},
{
"last_affected": "30"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2018-1099",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 381473,
"published_at": "2018-04-03T16:29:00.297+00:00"
}