UnratedFix available
libxml2: Fix of CVE-2026-86142
Type: advisorySources: OSV
- CVE-2026-86142: fix heap buffer overflow in xmlXPtrEvalXPtrPart by rejecting XPointer parts whose length is not representable as an int
- Products
- libxml2, libxml2-devel, libxml2-python, libxml2-static
- Affected versions
- Not specified
- Fixed versions
- 2.9.1-6.0.11.el7_9.6.tuxcare.els9
- CVEs
- CVE-2026-86142
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:09 UTC · Revision 1
Source evidence
- CVE-2026-86142: fix heap buffer overflow in xmlXPtrEvalXPtrPart by rejecting XPointer parts whose length is not representable as an int
osv:CLSA-2026-1789381419
libxml2
Fixed versions: 2.9.1-6.0.11.el7_9.6.tuxcare.els9
libxml2-devel
Fixed versions: 2.9.1-6.0.11.el7_9.6.tuxcare.els9
libxml2-python
Fixed versions: 2.9.1-6.0.11.el7_9.6.tuxcare.els9
libxml2-static
Fixed versions: 2.9.1-6.0.11.el7_9.6.tuxcare.els9
Complete source record
{
"id": "c62a7c231f4da087bfb6fb824cd1506a6a7b2493d833ba9c48ae1b2767278052",
"url": "https://osv.dev/vulnerability/CLSA-2026-1789381419",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "libxml2: Fix of CVE-2026-86142",
"summary": "- CVE-2026-86142: fix heap buffer overflow in xmlXPtrEvalXPtrPart by rejecting XPointer parts whose length is not representable as an int",
"evidence": "osv:CLSA-2026-1789381419",
"products": [
{
"name": {
"value": "libxml2",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.9.1-6.0.11.el7_9.6.tuxcare.els9",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libxml2-devel",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.9.1-6.0.11.el7_9.6.tuxcare.els9",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libxml2-python",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.9.1-6.0.11.el7_9.6.tuxcare.els9",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libxml2-static",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.9.1-6.0.11.el7_9.6.tuxcare.els9",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1789381419",
"aliases": [
"CLSA-2026-1789381419"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.1-6.0.11.el7_9.6.tuxcare.els9"
}
]
}
],
"package": {
"name": "libxml2",
"purl": "pkg:rpm/tuxcare/libxml2?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1789381419.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.1-6.0.11.el7_9.6.tuxcare.els9"
}
]
}
],
"package": {
"name": "libxml2-devel",
"purl": "pkg:rpm/tuxcare/libxml2-devel?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1789381419.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.1-6.0.11.el7_9.6.tuxcare.els9"
}
]
}
],
"package": {
"name": "libxml2-python",
"purl": "pkg:rpm/tuxcare/libxml2-python?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1789381419.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.1-6.0.11.el7_9.6.tuxcare.els9"
}
]
}
],
"package": {
"name": "libxml2-static",
"purl": "pkg:rpm/tuxcare/libxml2-static?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1789381419.json"
}
}
],
"modified": "2026-10-26T09:31:48.754105359Z",
"provider": "osv",
"upstream": [
"CVE-2026-86142"
],
"references": [
"https://errata.tuxcare.com/els_os/centos7els/CLSA-2026-1789381419.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-86142"
]
},
"related_cves": [
{
"value": "CVE-2026-86142",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 448517,
"published_at": "2026-09-14T14:35:07+00:00"
}