UnratedFix available
expat: Fix of 3 CVEs
Type: advisorySources: OSV
- CVE-2026-56407: cap entity textLen against signed integer overflow in doProlog - CVE-2026-56408: protect copyString from integer overflow - CVE-2026-56409: protect xmlwf output path join from integer overflow
- Products
- expat, expat-devel, expat-static
- Affected versions
- Not specified
- Fixed versions
- 2.5.0-5.el9_6.tuxcare.els11
- CVEs
- CVE-2026-56407, CVE-2026-56408, CVE-2026-56409
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 10:52 UTC · Revision 1
Source evidence
- CVE-2026-56407: cap entity textLen against signed integer overflow in doProlog - CVE-2026-56408: protect copyString from integer overflow - CVE-2026-56409: protect xmlwf output path join from integer overflow
osv:CLSA-2026-1786034306
expat
Fixed versions: 2.5.0-5.el9_6.tuxcare.els11
expat-devel
Fixed versions: 2.5.0-5.el9_6.tuxcare.els11
expat-static
Fixed versions: 2.5.0-5.el9_6.tuxcare.els11
Complete source record
{
"id": "e195c327ef3005c7532e3061cc359d42d127be8a977f29296b2640a5b691a0b2",
"url": "https://osv.dev/vulnerability/CLSA-2026-1786034306",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "expat: Fix of 3 CVEs",
"summary": "- CVE-2026-56407: cap entity textLen against signed integer overflow in doProlog - CVE-2026-56408: protect copyString from integer overflow - CVE-2026-56409: protect xmlwf output path join from integer overflow",
"evidence": "osv:CLSA-2026-1786034306",
"products": [
{
"name": {
"value": "expat",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.5.0-5.el9_6.tuxcare.els11",
"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.els11",
"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.els11",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1786034306",
"aliases": [
"CLSA-2026-1786034306"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.5.0-5.el9_6.tuxcare.els11"
}
]
}
],
"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-2026-1786034306.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.5.0-5.el9_6.tuxcare.els11"
}
]
}
],
"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-2026-1786034306.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.5.0-5.el9_6.tuxcare.els11"
}
]
}
],
"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-2026-1786034306.json"
}
}
],
"modified": "2026-10-26T09:31:25.195451896Z",
"provider": "osv",
"upstream": [
"CVE-2026-56407",
"CVE-2026-56408",
"CVE-2026-56409"
],
"references": [
"https://errata.tuxcare.com/els_os/tuxcare9.6esu/CLSA-2026-1786034306.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56407",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56408",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56409"
]
},
"related_cves": [
{
"value": "CVE-2026-56407",
"evidence": "/upstream"
},
{
"value": "CVE-2026-56408",
"evidence": "/upstream"
},
{
"value": "CVE-2026-56409",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 447650,
"published_at": "2026-08-06T16:38:38+00:00"
}