LowFix available
libarchive — security advisory
A flaw was found in libarchive. This vulnerability allows a remote attacker to trigger a heap overflow by providing a specially crafted tar archive. The issue occurs during the parsing of a PAX extended header containing a malformed SUN.holesdata sparse-file attribute. Successful exploitation could lead to a denial of service, making the system unavailable, or potentially allow for arbitrary code execution, giving the attacker control over the affected system.
- Products
- libarchive
- Affected versions
- 3.6.2-1, 3.6.2-1+deb12u1, 3.6.2-1+deb12u2, 3.6.2-1+deb12u3, 3.6.2-1+deb12u4, 3.7.4-4, 3.7.4-4+deb13u1, 3.8.4-1, 3.8.5-1, 3.8.6-1, 3.8.7-1, 3.8.8-1, 3.8.8-2, 3.8.9-1
- Fixed versions
- 3.6.2-1+deb12u5, 3.8.9-1
- CVEs
- CVE-2026-15028
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 28 Oct 2026, 11:07 UTC · Revision 1
Source evidence
A flaw was found in libarchive. This vulnerability allows a remote attacker to trigger a heap overflow by providing a specially crafted tar archive. The issue occurs during the parsing of a PAX extended header containing a malformed SUN.holesdata sparse-file attribute. Successful exploitation could lead to a denial of service, making the system unavailable, or potentially allow for arbitrary code execution, giving the attacker control over the affected system.
osv:DEBIAN-CVE-2026-15028
libarchive
Fixed versions: 3.6.2-1+deb12u5
libarchive
Fixed versions: Not specified
libarchive
Fixed versions: 3.8.9-1
Complete source record
{
"id": "c369a21dc8f99992fa8d3c5e4936ea3fbf86b05ad39111e63999db1e859e227b",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-15028",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-15028",
"summary": "A flaw was found in libarchive. This vulnerability allows a remote attacker to trigger a heap overflow by providing a specially crafted tar archive. The issue occurs during the parsing of a PAX extended header containing a malformed SUN.holesdata sparse-file attribute. Successful exploitation could lead to a denial of service, making the system unavailable, or potentially allow for arbitrary code execution, giving the attacker control over the affected system.",
"evidence": "osv:DEBIAN-CVE-2026-15028",
"products": [
{
"name": {
"value": "libarchive",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.6.2-1+deb12u5",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "3.6.2-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.6.2-1+deb12u1",
"evidence": "/affected/0/versions"
},
{
"value": "3.6.2-1+deb12u2",
"evidence": "/affected/0/versions"
},
{
"value": "3.6.2-1+deb12u3",
"evidence": "/affected/0/versions"
},
{
"value": "3.6.2-1+deb12u4",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "libarchive",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.7.4-4",
"evidence": "/affected/1/versions"
},
{
"value": "3.7.4-4+deb13u1",
"evidence": "/affected/1/versions"
},
{
"value": "3.8.4-1",
"evidence": "/affected/1/versions"
},
{
"value": "3.8.5-1",
"evidence": "/affected/1/versions"
},
{
"value": "3.8.6-1",
"evidence": "/affected/1/versions"
},
{
"value": "3.8.7-1",
"evidence": "/affected/1/versions"
},
{
"value": "3.8.8-1",
"evidence": "/affected/1/versions"
},
{
"value": "3.8.8-2",
"evidence": "/affected/1/versions"
},
{
"value": "3.8.9-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "libarchive",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.8.9-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": [
{
"value": "3.7.4-4",
"evidence": "/affected/2/versions"
},
{
"value": "3.8.4-1",
"evidence": "/affected/2/versions"
},
{
"value": "3.8.5-1",
"evidence": "/affected/2/versions"
},
{
"value": "3.8.6-1",
"evidence": "/affected/2/versions"
},
{
"value": "3.8.7-1",
"evidence": "/affected/2/versions"
},
{
"value": "3.8.8-1",
"evidence": "/affected/2/versions"
},
{
"value": "3.8.8-2",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "low",
"structured": {
"id": "DEBIAN-CVE-2026-15028",
"aliases": [
"DEBIAN-CVE-2026-15028"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.6.2-1+deb12u5"
}
]
}
],
"package": {
"name": "libarchive",
"purl": "pkg:deb/debian/libarchive?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"3.6.2-1",
"3.6.2-1+deb12u1",
"3.6.2-1+deb12u2",
"3.6.2-1+deb12u3",
"3.6.2-1+deb12u4"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-15028.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libarchive",
"purl": "pkg:deb/debian/libarchive?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"3.7.4-4",
"3.7.4-4+deb13u1",
"3.8.4-1",
"3.8.5-1",
"3.8.6-1",
"3.8.7-1",
"3.8.8-1",
"3.8.8-2",
"3.8.9-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-15028.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.8.9-1"
}
]
}
],
"package": {
"name": "libarchive",
"purl": "pkg:deb/debian/libarchive?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"3.7.4-4",
"3.8.4-1",
"3.8.5-1",
"3.8.6-1",
"3.8.7-1",
"3.8.8-1",
"3.8.8-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-15028.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-09T09:47:26.603133377Z",
"provider": "osv",
"upstream": [
"CVE-2026-15028"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-15028"
]
},
"related_cves": [
{
"value": "CVE-2026-15028",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 111508,
"published_at": "2026-07-10T10:16:23.417+00:00"
}