expat: Fix of 7 CVEs
- CVE-2026-56132: fix out-of-bound scaffolding index store in doProlog - CVE-2026-56403: protect storeAtts and xmlwf xcsdup from signed integer overflow - CVE-2026-56404: protect addBinding from signed integer overflow - CVE-2026-56405: protect getAttributeId from signed integer overflow - CVE-2026-56406: add missing overflow check to XML_ParseBuffer - CVE-2026-56410: protect xmlwf resolveSystemId from integer overflow - CVE-2026-56411: protect xmlwf notation list allocation from integer overflow
- Products
- expat, expat-devel, expat-static
- Affected versions
- Not specified
- Fixed versions
- 2.5.0-5.el9_6.tuxcare.els9
- CVEs
- CVE-2026-56132, CVE-2026-56403, CVE-2026-56404, CVE-2026-56405, CVE-2026-56406, CVE-2026-56410, CVE-2026-56411
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 10:51 UTC · Revision 1
Source evidence
- CVE-2026-56132: fix out-of-bound scaffolding index store in doProlog - CVE-2026-56403: protect storeAtts and xmlwf xcsdup from signed integer overflow - CVE-2026-56404: protect addBinding from signed integer overflow - CVE-2026-56405: protect getAttributeId from signed integer overflow - CVE-2026-56406: add missing overflow check to XML_ParseBuffer - CVE-2026-56410: protect xmlwf resolveSystemId from integer overflow - CVE-2026-56411: protect xmlwf notation list allocation from integer overflow
osv:CLSA-2026-1784032274
expat
Fixed versions: 2.5.0-5.el9_6.tuxcare.els9
expat-devel
Fixed versions: 2.5.0-5.el9_6.tuxcare.els9
expat-static
Fixed versions: 2.5.0-5.el9_6.tuxcare.els9
Complete source record
{
"id": "59811a23c4d2f4df717f55425e24f99ced1de4491100f27679a3228d92abaada",
"url": "https://osv.dev/vulnerability/CLSA-2026-1784032274",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "expat: Fix of 7 CVEs",
"summary": "- CVE-2026-56132: fix out-of-bound scaffolding index store in doProlog - CVE-2026-56403: protect storeAtts and xmlwf xcsdup from signed integer overflow - CVE-2026-56404: protect addBinding from signed integer overflow - CVE-2026-56405: protect getAttributeId from signed integer overflow - CVE-2026-56406: add missing overflow check to XML_ParseBuffer - CVE-2026-56410: protect xmlwf resolveSystemId from integer overflow - CVE-2026-56411: protect xmlwf notation list allocation from integer overflow",
"evidence": "osv:CLSA-2026-1784032274",
"products": [
{
"name": {
"value": "expat",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.5.0-5.el9_6.tuxcare.els9",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "expat-devel",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.5.0-5.el9_6.tuxcare.els9",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "expat-static",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.5.0-5.el9_6.tuxcare.els9",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1784032274",
"aliases": [
"CLSA-2026-1784032274"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.5.0-5.el9_6.tuxcare.els9"
}
]
}
],
"package": {
"name": "expat",
"purl": "pkg:rpm/tuxcare/expat?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-2026-1784032274.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.5.0-5.el9_6.tuxcare.els9"
}
]
}
],
"package": {
"name": "expat-devel",
"purl": "pkg:rpm/tuxcare/expat-devel?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-2026-1784032274.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.5.0-5.el9_6.tuxcare.els9"
}
]
}
],
"package": {
"name": "expat-static",
"purl": "pkg:rpm/tuxcare/expat-static?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-2026-1784032274.json"
}
}
],
"modified": "2026-10-26T09:31:17.897732095Z",
"provider": "osv",
"upstream": [
"CVE-2026-56132",
"CVE-2026-56403",
"CVE-2026-56404",
"CVE-2026-56405",
"CVE-2026-56406",
"CVE-2026-56410",
"CVE-2026-56411"
],
"references": [
"https://errata.tuxcare.com/els_os/tuxcare9.6esu/CLSA-2026-1784032274.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56132",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56403",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56404",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56405",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56406",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56410",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56411"
]
},
"related_cves": [
{
"value": "CVE-2026-56132",
"evidence": "/upstream"
},
{
"value": "CVE-2026-56403",
"evidence": "/upstream"
},
{
"value": "CVE-2026-56404",
"evidence": "/upstream"
},
{
"value": "CVE-2026-56405",
"evidence": "/upstream"
},
{
"value": "CVE-2026-56406",
"evidence": "/upstream"
},
{
"value": "CVE-2026-56410",
"evidence": "/upstream"
},
{
"value": "CVE-2026-56411",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 447566,
"published_at": "2026-07-14T16:23:56+00:00"
}