High
rpm — security advisory
A vulnerability was found in RPM's rpmbuild tarball processing. When processing a crafted source archive, the getTarSpec() function in tools/rpmbuild.cc passes an attacker-controlled tar archive member name to rpmExpand() as part of a %{basename:...} macro expression. A specially crafted .spec member name can therefore inject RPM macros, including Lua expressions, resulting in arbitrary code execution with the privileges of the user running rpmbuild. This can be exploited when a victim or automated build system processes an attacker-controlled source tarball using rpmbuild tarball mode (such as -ts, -ta, or -tb).
- Products
- rpm
- Affected versions
- 4.18.0+dfsg-1, 4.18.0+dfsg-1+deb12u1, 4.18.2+dfsg-1, 4.18.2+dfsg-1.1~exp1, 4.18.2+dfsg-2, 4.18.2+dfsg-2.1, 4.18.2+dfsg-2.1~exp1, 4.19.1.1+dfsg-1, 4.19.1.1+dfsg-1~exp, 4.20.0+dfsg-1, 4.20.0+dfsg-2, 4.20.0+dfsg-3, 4.20.0+dfsg-4, 4.20.1+dfsg-1, 4.20.1+dfsg-2, 4.20.1+dfsg-3, 6.0.0-1, 6.0.0-2, 6.0.1-1, 6.1.0-1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-78367
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 16:21 UTC · Revision 1
Source evidence
A vulnerability was found in RPM's rpmbuild tarball processing. When processing a crafted source archive, the getTarSpec() function in tools/rpmbuild.cc passes an attacker-controlled tar archive member name to rpmExpand() as part of a %{basename:...} macro expression. A specially crafted .spec member name can therefore inject RPM macros, including Lua expressions, resulting in arbitrary code execution with the privileges of the user running rpmbuild. This can be exploited when a victim or automated build system processes an attacker-controlled source tarball using rpmbuild tarball mode (such as -ts, -ta, or -tb).
osv:DEBIAN-CVE-2026-78367
rpm
Fixed versions: Not specified
rpm
Fixed versions: Not specified
rpm
Fixed versions: Not specified
Complete source record
{
"id": "d32c1364dcf2cd36a28ef3f0d87143fba7736efa29b2a5de972b8cde1a81ee05",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-78367",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-78367",
"summary": "A vulnerability was found in RPM's rpmbuild tarball processing. When processing a crafted source archive, the getTarSpec() function in tools/rpmbuild.cc passes an attacker-controlled tar archive member name to rpmExpand() as part of a %{basename:...} macro expression. A specially crafted .spec member name can therefore inject RPM macros, including Lua expressions, resulting in arbitrary code execution with the privileges of the user running rpmbuild. This can be exploited when a victim or automated build system processes an attacker-controlled source tarball using rpmbuild tarball mode (such as -ts, -ta, or -tb).",
"evidence": "osv:DEBIAN-CVE-2026-78367",
"products": [
{
"name": {
"value": "rpm",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.18.0+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.18.0+dfsg-1+deb12u1",
"evidence": "/affected/0/versions"
},
{
"value": "4.18.2+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.18.2+dfsg-1.1~exp1",
"evidence": "/affected/0/versions"
},
{
"value": "4.18.2+dfsg-2",
"evidence": "/affected/0/versions"
},
{
"value": "4.18.2+dfsg-2.1",
"evidence": "/affected/0/versions"
},
{
"value": "4.18.2+dfsg-2.1~exp1",
"evidence": "/affected/0/versions"
},
{
"value": "4.19.1.1+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.19.1.1+dfsg-1~exp",
"evidence": "/affected/0/versions"
},
{
"value": "4.20.0+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.20.0+dfsg-2",
"evidence": "/affected/0/versions"
},
{
"value": "4.20.0+dfsg-3",
"evidence": "/affected/0/versions"
},
{
"value": "4.20.0+dfsg-4",
"evidence": "/affected/0/versions"
},
{
"value": "4.20.1+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.20.1+dfsg-2",
"evidence": "/affected/0/versions"
},
{
"value": "4.20.1+dfsg-3",
"evidence": "/affected/0/versions"
},
{
"value": "6.0.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "6.0.0-2",
"evidence": "/affected/0/versions"
},
{
"value": "6.0.1-1",
"evidence": "/affected/0/versions"
},
{
"value": "6.1.0-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "rpm",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.20.1+dfsg-3",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.0-1",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.0-2",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.1-1",
"evidence": "/affected/1/versions"
},
{
"value": "6.1.0-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "rpm",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.20.1+dfsg-3",
"evidence": "/affected/2/versions"
},
{
"value": "6.0.0-1",
"evidence": "/affected/2/versions"
},
{
"value": "6.0.0-2",
"evidence": "/affected/2/versions"
},
{
"value": "6.0.1-1",
"evidence": "/affected/2/versions"
},
{
"value": "6.1.0-1",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2026-78367",
"aliases": [
"DEBIAN-CVE-2026-78367"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rpm",
"purl": "pkg:deb/debian/rpm?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"4.18.0+dfsg-1",
"4.18.0+dfsg-1+deb12u1",
"4.18.2+dfsg-1",
"4.18.2+dfsg-1.1~exp1",
"4.18.2+dfsg-2",
"4.18.2+dfsg-2.1",
"4.18.2+dfsg-2.1~exp1",
"4.19.1.1+dfsg-1",
"4.19.1.1+dfsg-1~exp",
"4.20.0+dfsg-1",
"4.20.0+dfsg-2",
"4.20.0+dfsg-3",
"4.20.0+dfsg-4",
"4.20.1+dfsg-1",
"4.20.1+dfsg-2",
"4.20.1+dfsg-3",
"6.0.0-1",
"6.0.0-2",
"6.0.1-1",
"6.1.0-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-78367.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rpm",
"purl": "pkg:deb/debian/rpm?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"4.20.1+dfsg-3",
"6.0.0-1",
"6.0.0-2",
"6.0.1-1",
"6.1.0-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-78367.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rpm",
"purl": "pkg:deb/debian/rpm?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"4.20.1+dfsg-3",
"6.0.0-1",
"6.0.0-2",
"6.0.1-1",
"6.1.0-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-78367.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-15T09:47:30.752718046Z",
"provider": "osv",
"upstream": [
"CVE-2026-78367"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-78367"
]
},
"related_cves": [
{
"value": "CVE-2026-78367",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 327562,
"published_at": "2026-08-24T14:17:04.767+00:00"
}