kbd: Fix of CVE-2026-72693
- CVE-2026-72693: require a matching process owner and controlling terminal when openvt -u determines the current VT owner, instead of trusting the ownership of an inherited file descriptor, and refuse root as a pre-authenticated target. The old check could be satisfied by a process not owned by the VT owner, starting login -f for the wrong user without a password.
- Products
- kbd, kbd-legacy, kbd-misc
- Affected versions
- Not specified
- Fixed versions
- 2.4.0-11.el9_6.tuxcare.els1
- CVEs
- CVE-2026-72693
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 10:53 UTC · Revision 1
Source evidence
- CVE-2026-72693: require a matching process owner and controlling terminal when openvt -u determines the current VT owner, instead of trusting the ownership of an inherited file descriptor, and refuse root as a pre-authenticated target. The old check could be satisfied by a process not owned by the VT owner, starting login -f for the wrong user without a password.
osv:CLSA-2026-1788265535
kbd
Fixed versions: 2.4.0-11.el9_6.tuxcare.els1
kbd-legacy
Fixed versions: 2.4.0-11.el9_6.tuxcare.els1
kbd-misc
Fixed versions: 2.4.0-11.el9_6.tuxcare.els1
Complete source record
{
"id": "8d2a30aeff2157ae8d05c40efc84a8521702e0ddc687c35052c3a6348e7a8a4c",
"url": "https://osv.dev/vulnerability/CLSA-2026-1788265535",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "kbd: Fix of CVE-2026-72693",
"summary": "- CVE-2026-72693: require a matching process owner and controlling terminal when openvt -u determines the current VT owner, instead of trusting the ownership of an inherited file descriptor, and refuse root as a pre-authenticated target. The old check could be satisfied by a process not owned by the VT owner, starting login -f for the wrong user without a password.",
"evidence": "osv:CLSA-2026-1788265535",
"products": [
{
"name": {
"value": "kbd",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.4.0-11.el9_6.tuxcare.els1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "kbd-legacy",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.4.0-11.el9_6.tuxcare.els1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "kbd-misc",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.4.0-11.el9_6.tuxcare.els1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1788265535",
"aliases": [
"CLSA-2026-1788265535"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.0-11.el9_6.tuxcare.els1"
}
]
}
],
"package": {
"name": "kbd",
"purl": "pkg:rpm/tuxcare/kbd?distro=almalinux-9.6",
"ecosystem": "TuxCare:AlmaLinux:9.6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1788265535.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.0-11.el9_6.tuxcare.els1"
}
]
}
],
"package": {
"name": "kbd-legacy",
"purl": "pkg:rpm/tuxcare/kbd-legacy?distro=almalinux-9.6",
"ecosystem": "TuxCare:AlmaLinux:9.6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1788265535.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.0-11.el9_6.tuxcare.els1"
}
]
}
],
"package": {
"name": "kbd-misc",
"purl": "pkg:rpm/tuxcare/kbd-misc?distro=almalinux-9.6",
"ecosystem": "TuxCare:AlmaLinux:9.6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1788265535.json"
}
}
],
"modified": "2026-10-26T09:31:28.908652267Z",
"provider": "osv",
"upstream": [
"CVE-2026-72693"
],
"references": [
"https://errata.tuxcare.com/els_os/tuxcare9.6esu/CLSA-2026-1788265535.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-72693"
]
},
"related_cves": [
{
"value": "CVE-2026-72693",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 447694,
"published_at": "2026-09-01T12:25:45+00:00"
}