UnratedFix available
libcap: Fix of 2 CVEs
Type: advisorySources: OSV
- CVE-2026-4878: fix TOCTOU race in cap_set_file() by performing xattr writes via an O_NOFOLLOW file descriptor instead of the user-supplied path
- Products
- libcap, libcap-devel
- Affected versions
- Not specified
- Fixed versions
- 2.22-11.el7.tuxcare.els2
- CVEs
- CVE-2026-4878
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:37 UTC · Revision 1
Source evidence
- CVE-2026-4878: fix TOCTOU race in cap_set_file() by performing xattr writes via an O_NOFOLLOW file descriptor instead of the user-supplied path
osv:CLSA-2026-1792443899
libcap
Fixed versions: 2.22-11.el7.tuxcare.els2
libcap-devel
Fixed versions: 2.22-11.el7.tuxcare.els2
Complete source record
{
"id": "e68ef258ca469b139635937d5dfa6409f435b6b8b5718b4a1a7ef5cae0145c09",
"url": "https://osv.dev/vulnerability/CLSA-2026-1792443899",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "libcap: Fix of 2 CVEs",
"summary": "- CVE-2026-4878: fix TOCTOU race in cap_set_file() by performing xattr writes via an O_NOFOLLOW file descriptor instead of the user-supplied path",
"evidence": "osv:CLSA-2026-1792443899",
"products": [
{
"name": {
"value": "libcap",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.22-11.el7.tuxcare.els2",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libcap-devel",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.22-11.el7.tuxcare.els2",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1792443899",
"aliases": [
"CLSA-2026-1792443899"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.22-11.el7.tuxcare.els2"
}
]
}
],
"package": {
"name": "libcap",
"purl": "pkg:rpm/tuxcare/libcap?distro=rhel-7",
"ecosystem": "TuxCare:RHEL:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1792443899.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.22-11.el7.tuxcare.els2"
}
]
}
],
"package": {
"name": "libcap-devel",
"purl": "pkg:rpm/tuxcare/libcap-devel?distro=rhel-7",
"ecosystem": "TuxCare:RHEL:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/rhel7els/CLSA-2026-1792443899.json"
}
}
],
"modified": "2026-10-26T09:31:59.430723723Z",
"provider": "osv",
"upstream": [
"CVE-2026-4878"
],
"references": [
"https://errata.tuxcare.com/els_os/rhel7els/CLSA-2026-1792443899.html",
"https://nvd.nist.gov/vuln/detail/CVE-2023-2603",
"https://nvd.nist.gov/vuln/detail/CVE-2026-4878"
]
},
"related_cves": [
{
"value": "CVE-2026-4878",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 449275,
"published_at": "2026-10-19T21:05:15+00:00"
}