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
- 2.11.3-r2, 2.13.7-r1, 2.15.3-r0, 2.18.1-r0, 2.19.1-r0
- CVEs
- CVE-2018-17456
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 21:59 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:ALPINE-CVE-2018-17456
git
Fixed versions: 2.19.1-r0
git
Fixed versions: 2.19.1-r0
git
Fixed versions: 2.19.1-r0
git
Fixed versions: 2.19.1-r0
git
Fixed versions: 2.19.1-r0
git
Fixed versions: 2.19.1-r0
git
Fixed versions: 2.19.1-r0
git
Fixed versions: 2.19.1-r0
git
Fixed versions: 2.19.1-r0
git
Fixed versions: 2.19.1-r0
git
Fixed versions: 2.19.1-r0
git
Fixed versions: 2.19.1-r0
git
Fixed versions: 2.19.1-r0
git
Fixed versions: 2.19.1-r0
git
Fixed versions: 2.19.1-r0
git
Fixed versions: 2.11.3-r2
git
Fixed versions: 2.13.7-r1
git
Fixed versions: 2.15.3-r0
git
Fixed versions: 2.18.1-r0
git
Fixed versions: 2.19.1-r0
Complete source record
{
"id": "3a9b1f9329d6d57b4e364258e36a581e86b2968dceb57425f46b995d5c731304",
"url": "https://osv.dev/vulnerability/ALPINE-CVE-2018-17456",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "ALPINE-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:ALPINE-CVE-2018-17456",
"products": [
{
"name": {
"value": "git",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.19.1-r0",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
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"evidence": "/affected/1/package/name"
},
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"evidence": "/affected/1/ranges"
}
],
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},
{
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{
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{
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{
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{
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{
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{
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{
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],
"affected_versions": []
},
{
"name": {
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},
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{
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],
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},
{
"name": {
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"evidence": "/affected/11/package/name"
},
"prerequisites": [],
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{
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"evidence": "/affected/11/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "git",
"evidence": "/affected/12/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.19.1-r0",
"evidence": "/affected/12/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "git",
"evidence": "/affected/13/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/13/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/14/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/14/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/15/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.11.3-r2",
"evidence": "/affected/15/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "git",
"evidence": "/affected/16/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.13.7-r1",
"evidence": "/affected/16/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "git",
"evidence": "/affected/17/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.15.3-r0",
"evidence": "/affected/17/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "git",
"evidence": "/affected/18/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.18.1-r0",
"evidence": "/affected/18/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "git",
"evidence": "/affected/19/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.19.1-r0",
"evidence": "/affected/19/ranges"
}
],
"affected_versions": []
}
],
"severity": "critical",
"structured": {
"id": "ALPINE-CVE-2018-17456",
"aliases": [
"ALPINE-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": "2.14.0"
},
{
"fixed": "2.19.1-r0"
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],
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"purl": "pkg:apk/alpine/git?arch=source",
"ecosystem": "Alpine:v3.10"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-17456.json"
},
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{
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}
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},
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},
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},
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},
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},
"database_specific": {
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},
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],
"package": {
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"ecosystem": "Alpine:v3.21"
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{
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],
"package": {
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"ecosystem": "Alpine:v3.5"
},
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},
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},
{
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]
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],
"package": {
"name": "git",
"purl": "pkg:apk/alpine/git?arch=source",
"ecosystem": "Alpine:v3.6"
},
"database_specific": {
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{
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],
"package": {
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"ecosystem": "Alpine:v3.7"
},
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},
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},
{
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"events": [
{
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},
{
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}
]
}
],
"package": {
"name": "git",
"purl": "pkg:apk/alpine/git?arch=source",
"ecosystem": "Alpine:v3.8"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-17456.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "2.14.0"
},
{
"fixed": "2.19.1-r0"
}
]
}
],
"package": {
"name": "git",
"purl": "pkg:apk/alpine/git?arch=source",
"ecosystem": "Alpine:v3.9"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-17456.json"
},
"ecosystem_specific": {}
}
],
"modified": "2026-10-23T17:17:55.231455480Z",
"provider": "osv",
"upstream": [
"CVE-2018-17456"
],
"references": [
"https://security.alpinelinux.org/vuln/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": 415104,
"published_at": "2018-10-06T14:29:00.3+00:00"
}