CriticalFix available
libgit2 — security advisory
An issue was discovered in libgit2 before 0.28.4 and 0.9x before 0.99.0. path.c mishandles equivalent filenames that exist because of NTFS Alternate Data Streams. This may allow remote code execution when cloning a repository. This issue is similar to CVE-2019-1352.
- Products
- libgit2
- Affected versions
- Not specified
- Fixed versions
- 0.28.4+dfsg.1-2
- CVEs
- CVE-2020-12278
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 13:00 UTC · Revision 1
Source evidence
An issue was discovered in libgit2 before 0.28.4 and 0.9x before 0.99.0. path.c mishandles equivalent filenames that exist because of NTFS Alternate Data Streams. This may allow remote code execution when cloning a repository. This issue is similar to CVE-2019-1352.
osv:DEBIAN-CVE-2020-12278
libgit2
Fixed versions: 0.28.4+dfsg.1-2
libgit2
Fixed versions: 0.28.4+dfsg.1-2
libgit2
Fixed versions: 0.28.4+dfsg.1-2
Complete source record
{
"id": "f6d1ed927400c433211456fc548d56ec34784e44f5150a57a1179f63c0a2e98d",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-12278",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2020-12278",
"summary": "An issue was discovered in libgit2 before 0.28.4 and 0.9x before 0.99.0. path.c mishandles equivalent filenames that exist because of NTFS Alternate Data Streams. This may allow remote code execution when cloning a repository. This issue is similar to CVE-2019-1352.",
"evidence": "osv:DEBIAN-CVE-2020-12278",
"products": [
{
"name": {
"value": "libgit2",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.28.4+dfsg.1-2",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libgit2",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.28.4+dfsg.1-2",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libgit2",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.28.4+dfsg.1-2",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "critical",
"structured": {
"id": "DEBIAN-CVE-2020-12278",
"aliases": [
"DEBIAN-CVE-2020-12278"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.28.4+dfsg.1-2"
}
]
}
],
"package": {
"name": "libgit2",
"purl": "pkg:deb/debian/libgit2?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-12278.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.28.4+dfsg.1-2"
}
]
}
],
"package": {
"name": "libgit2",
"purl": "pkg:deb/debian/libgit2?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-12278.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.28.4+dfsg.1-2"
}
]
}
],
"package": {
"name": "libgit2",
"purl": "pkg:deb/debian/libgit2?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-12278.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T12:01:25.165356967Z",
"provider": "osv",
"upstream": [
"CVE-2020-12278"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2020-12278"
]
},
"related_cves": [
{
"value": "CVE-2020-12278",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 451653,
"published_at": "2020-04-27T17:15:13.407+00:00"
}