CriticalFix available
git — security advisory
Git before 2.14.5, 2.15.x before 2.15.3, 2.16.x before 2.16.5, 2.17.x before 2.17.2, 2.18.x before 2.18.1, and 2.19.x before 2.19.1 allows remote code execution during processing of a recursive "git clone" of a superproject if a .gitmodules file has a URL field beginning with a '-' character.
- Products
- git
- Affected versions
- Not specified
- Fixed versions
- 1:2.19.1-1
- CVEs
- CVE-2018-17456
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 00:09 UTC · Revision 1
Source evidence
Git before 2.14.5, 2.15.x before 2.15.3, 2.16.x before 2.16.5, 2.17.x before 2.17.2, 2.18.x before 2.18.1, and 2.19.x before 2.19.1 allows remote code execution during processing of a recursive "git clone" of a superproject if a .gitmodules file has a URL field beginning with a '-' character.
osv:DEBIAN-CVE-2018-17456
git
Fixed versions: 1:2.19.1-1
git
Fixed versions: 1:2.19.1-1
git
Fixed versions: 1:2.19.1-1
Complete source record
{
"id": "4caef6afb47d34f64746680468edabc3e9e25fa2929a93e37c5bb582dcd26046",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2018-17456",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2018-17456",
"summary": "Git before 2.14.5, 2.15.x before 2.15.3, 2.16.x before 2.16.5, 2.17.x before 2.17.2, 2.18.x before 2.18.1, and 2.19.x before 2.19.1 allows remote code execution during processing of a recursive \"git clone\" of a superproject if a .gitmodules file has a URL field beginning with a '-' character.",
"evidence": "osv:DEBIAN-CVE-2018-17456",
"products": [
{
"name": {
"value": "git",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:2.19.1-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "git",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:2.19.1-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "git",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:2.19.1-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "critical",
"structured": {
"id": "DEBIAN-CVE-2018-17456",
"aliases": [
"DEBIAN-CVE-2018-17456"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:2.19.1-1"
}
]
}
],
"package": {
"name": "git",
"purl": "pkg:deb/debian/git?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-17456.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:2.19.1-1"
}
]
}
],
"package": {
"name": "git",
"purl": "pkg:deb/debian/git?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-17456.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:2.19.1-1"
}
]
}
],
"package": {
"name": "git",
"purl": "pkg:deb/debian/git?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-17456.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T18:03:02.299953475Z",
"provider": "osv",
"upstream": [
"CVE-2018-17456"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2018-17456"
]
},
"related_cves": [
{
"value": "CVE-2018-17456",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 420196,
"published_at": "2018-10-06T14:29:00.3+00:00"
}