UnratedFix available
xorg-x11-server: Fix of CVE-2026-88812
Type: advisorySources: OSV
- CVE-2026-88812: fix NULL text pointer after free in the XKB doodad error path
- Products
- xorg-x11-server-Xdmx, xorg-x11-server-Xephyr, xorg-x11-server-Xnest, xorg-x11-server-Xorg, xorg-x11-server-Xvfb, xorg-x11-server-Xwayland, xorg-x11-server-common, xorg-x11-server-devel, xorg-x11-server-source
- Affected versions
- Not specified
- Fixed versions
- 1.20.4-99.el7_9.tuxcare.els15
- CVEs
- CVE-2026-88812
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:38 UTC · Revision 1
Source evidence
- CVE-2026-88812: fix NULL text pointer after free in the XKB doodad error path
osv:CLSA-2026-1792770379
xorg-x11-server-Xdmx
Fixed versions: 1.20.4-99.el7_9.tuxcare.els15
xorg-x11-server-Xephyr
Fixed versions: 1.20.4-99.el7_9.tuxcare.els15
xorg-x11-server-Xnest
Fixed versions: 1.20.4-99.el7_9.tuxcare.els15
xorg-x11-server-Xorg
Fixed versions: 1.20.4-99.el7_9.tuxcare.els15
xorg-x11-server-Xvfb
Fixed versions: 1.20.4-99.el7_9.tuxcare.els15
xorg-x11-server-Xwayland
Fixed versions: 1.20.4-99.el7_9.tuxcare.els15
xorg-x11-server-common
Fixed versions: 1.20.4-99.el7_9.tuxcare.els15
xorg-x11-server-devel
Fixed versions: 1.20.4-99.el7_9.tuxcare.els15
xorg-x11-server-source
Fixed versions: 1.20.4-99.el7_9.tuxcare.els15
Complete source record
{
"id": "d8647d71e1065415770841eac82a731a99b59cf5e184725623558d06912a661f",
"url": "https://osv.dev/vulnerability/CLSA-2026-1792770379",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "xorg-x11-server: Fix of CVE-2026-88812",
"summary": "- CVE-2026-88812: fix NULL text pointer after free in the XKB doodad error path",
"evidence": "osv:CLSA-2026-1792770379",
"products": [
{
"name": {
"value": "xorg-x11-server-Xdmx",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.20.4-99.el7_9.tuxcare.els15",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "xorg-x11-server-Xephyr",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.20.4-99.el7_9.tuxcare.els15",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "xorg-x11-server-Xnest",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.20.4-99.el7_9.tuxcare.els15",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "xorg-x11-server-Xorg",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.20.4-99.el7_9.tuxcare.els15",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "xorg-x11-server-Xvfb",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.20.4-99.el7_9.tuxcare.els15",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "xorg-x11-server-Xwayland",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.20.4-99.el7_9.tuxcare.els15",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "xorg-x11-server-common",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.20.4-99.el7_9.tuxcare.els15",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "xorg-x11-server-devel",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.20.4-99.el7_9.tuxcare.els15",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "xorg-x11-server-source",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.20.4-99.el7_9.tuxcare.els15",
"evidence": "/affected/8/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1792770379",
"aliases": [
"CLSA-2026-1792770379"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.20.4-99.el7_9.tuxcare.els15"
}
]
}
],
"package": {
"name": "xorg-x11-server-Xdmx",
"purl": "pkg:rpm/tuxcare/xorg-x11-server-Xdmx?distro=rhel-7",
"ecosystem": "TuxCare:RHEL:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1792770379.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.20.4-99.el7_9.tuxcare.els15"
}
]
}
],
"package": {
"name": "xorg-x11-server-Xephyr",
"purl": "pkg:rpm/tuxcare/xorg-x11-server-Xephyr?distro=rhel-7",
"ecosystem": "TuxCare:RHEL:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1792770379.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.20.4-99.el7_9.tuxcare.els15"
}
]
}
],
"package": {
"name": "xorg-x11-server-Xnest",
"purl": "pkg:rpm/tuxcare/xorg-x11-server-Xnest?distro=rhel-7",
"ecosystem": "TuxCare:RHEL:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1792770379.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.20.4-99.el7_9.tuxcare.els15"
}
]
}
],
"package": {
"name": "xorg-x11-server-Xorg",
"purl": "pkg:rpm/tuxcare/xorg-x11-server-Xorg?distro=rhel-7",
"ecosystem": "TuxCare:RHEL:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1792770379.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.20.4-99.el7_9.tuxcare.els15"
}
]
}
],
"package": {
"name": "xorg-x11-server-Xvfb",
"purl": "pkg:rpm/tuxcare/xorg-x11-server-Xvfb?distro=rhel-7",
"ecosystem": "TuxCare:RHEL:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1792770379.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.20.4-99.el7_9.tuxcare.els15"
}
]
}
],
"package": {
"name": "xorg-x11-server-Xwayland",
"purl": "pkg:rpm/tuxcare/xorg-x11-server-Xwayland?distro=rhel-7",
"ecosystem": "TuxCare:RHEL:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1792770379.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.20.4-99.el7_9.tuxcare.els15"
}
]
}
],
"package": {
"name": "xorg-x11-server-common",
"purl": "pkg:rpm/tuxcare/xorg-x11-server-common?distro=rhel-7",
"ecosystem": "TuxCare:RHEL:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1792770379.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.20.4-99.el7_9.tuxcare.els15"
}
]
}
],
"package": {
"name": "xorg-x11-server-devel",
"purl": "pkg:rpm/tuxcare/xorg-x11-server-devel?distro=rhel-7",
"ecosystem": "TuxCare:RHEL:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1792770379.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.20.4-99.el7_9.tuxcare.els15"
}
]
}
],
"package": {
"name": "xorg-x11-server-source",
"purl": "pkg:rpm/tuxcare/xorg-x11-server-source?distro=rhel-7",
"ecosystem": "TuxCare:RHEL:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1792770379.json"
}
}
],
"modified": "2026-10-26T09:32:01.315962745Z",
"provider": "osv",
"upstream": [
"CVE-2026-88812"
],
"references": [
"https://errata.tuxcare.com/els_os/rhel7els/CLSA-2026-1792770379.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-88812"
]
},
"related_cves": [
{
"value": "CVE-2026-88812",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 449370,
"published_at": "2026-10-23T15:46:30+00:00"
}