UnratedFix available
samba: Fix of 2 CVEs
Type: advisorySources: OSV
- CVE-2026-3012: do not trust CA certificates fetched over HTTP in the certificate auto-enrollment GP extension; use only LDAP-derived certificates and skip CAs with no cACertificate attribute - CVE-2026-4408: escape shell metacharacters in the client-controlled username before substituting it into the "check password script" via %u, preventing remote command injection
- Products
- ctdb, libnetapi, libnetapi-devel, libsmbclient, libsmbclient-devel, libwbclient, libwbclient-devel, python3-samba, python3-samba-dc, python3-samba-devel, python3-samba-test, samba, samba-client, samba-client-libs, samba-common, samba-common-libs, samba-common-tools, samba-dc-libs, samba-dcerpc, samba-devel, samba-krb5-printing, samba-ldb-ldap-modules, samba-libs, samba-pidl, samba-test, samba-test-libs, samba-tools, samba-usershares, samba-vfs-iouring, samba-winbind, samba-winbind-clients, samba-winbind-krb5-locator, samba-winbind-modules, samba-winexe
- Affected versions
- Not specified
- Fixed versions
- 4.19.4-4.el8.tuxcare.els2
- CVEs
- CVE-2026-3012, CVE-2026-4408
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 10:57 UTC · Revision 1
Source evidence
- CVE-2026-3012: do not trust CA certificates fetched over HTTP in the certificate auto-enrollment GP extension; use only LDAP-derived certificates and skip CAs with no cACertificate attribute - CVE-2026-4408: escape shell metacharacters in the client-controlled username before substituting it into the "check password script" via %u, preventing remote command injection
osv:CLSA-2026-1781101271
ctdb
Fixed versions: 4.19.4-4.el8.tuxcare.els2
libnetapi
Fixed versions: 4.19.4-4.el8.tuxcare.els2
libnetapi-devel
Fixed versions: 4.19.4-4.el8.tuxcare.els2
libsmbclient
Fixed versions: 4.19.4-4.el8.tuxcare.els2
libsmbclient-devel
Fixed versions: 4.19.4-4.el8.tuxcare.els2
libwbclient
Fixed versions: 4.19.4-4.el8.tuxcare.els2
libwbclient-devel
Fixed versions: 4.19.4-4.el8.tuxcare.els2
python3-samba
Fixed versions: 4.19.4-4.el8.tuxcare.els2
python3-samba-dc
Fixed versions: 4.19.4-4.el8.tuxcare.els2
python3-samba-devel
Fixed versions: 4.19.4-4.el8.tuxcare.els2
python3-samba-test
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba-client
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba-client-libs
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba-common
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba-common-libs
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba-common-tools
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba-dc-libs
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba-dcerpc
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba-devel
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba-krb5-printing
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba-ldb-ldap-modules
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba-libs
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba-pidl
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba-test
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba-test-libs
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba-tools
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba-usershares
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba-vfs-iouring
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba-winbind
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba-winbind-clients
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba-winbind-krb5-locator
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba-winbind-modules
Fixed versions: 4.19.4-4.el8.tuxcare.els2
samba-winexe
Fixed versions: 4.19.4-4.el8.tuxcare.els2
Complete source record
{
"id": "5669f26f6d82098dd786a75d8a8a85c96fb053b1b20cb7145ea3336794cc7516",
"url": "https://osv.dev/vulnerability/CLSA-2026-1781101271",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "samba: Fix of 2 CVEs",
"summary": "- CVE-2026-3012: do not trust CA certificates fetched over HTTP in the certificate auto-enrollment GP extension; use only LDAP-derived certificates and skip CAs with no cACertificate attribute - CVE-2026-4408: escape shell metacharacters in the client-controlled username before substituting it into the \"check password script\" via %u, preventing remote command injection",
"evidence": "osv:CLSA-2026-1781101271",
"products": [
{
"name": {
"value": "ctdb",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libnetapi",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libnetapi-devel",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libsmbclient",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libsmbclient-devel",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libwbclient",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libwbclient-devel",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "python3-samba",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "python3-samba-dc",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/8/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "python3-samba-devel",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/9/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "python3-samba-test",
"evidence": "/affected/10/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/10/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba",
"evidence": "/affected/11/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/11/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba-client",
"evidence": "/affected/12/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/12/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba-client-libs",
"evidence": "/affected/13/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/13/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba-common",
"evidence": "/affected/14/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/14/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba-common-libs",
"evidence": "/affected/15/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/15/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba-common-tools",
"evidence": "/affected/16/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/16/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba-dc-libs",
"evidence": "/affected/17/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/17/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba-dcerpc",
"evidence": "/affected/18/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/18/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba-devel",
"evidence": "/affected/19/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/19/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba-krb5-printing",
"evidence": "/affected/20/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/20/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba-ldb-ldap-modules",
"evidence": "/affected/21/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/21/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba-libs",
"evidence": "/affected/22/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/22/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba-pidl",
"evidence": "/affected/23/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/23/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba-test",
"evidence": "/affected/24/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/24/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba-test-libs",
"evidence": "/affected/25/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/25/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba-tools",
"evidence": "/affected/26/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/26/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba-usershares",
"evidence": "/affected/27/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/27/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba-vfs-iouring",
"evidence": "/affected/28/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/28/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba-winbind",
"evidence": "/affected/29/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/29/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba-winbind-clients",
"evidence": "/affected/30/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/30/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba-winbind-krb5-locator",
"evidence": "/affected/31/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/31/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba-winbind-modules",
"evidence": "/affected/32/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/32/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "samba-winexe",
"evidence": "/affected/33/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.19.4-4.el8.tuxcare.els2",
"evidence": "/affected/33/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1781101271",
"aliases": [
"CLSA-2026-1781101271"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.19.4-4.el8.tuxcare.els2"
}
]
}
],
"package": {
"name": "ctdb",
"purl": "pkg:rpm/tuxcare/ctdb?distro=centos-stream-8",
"ecosystem": "TuxCare:CentOS-Stream:8"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1781101271.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.19.4-4.el8.tuxcare.els2"
}
]
}
],
"package": {
"name": "libnetapi",
"purl": "pkg:rpm/tuxcare/libnetapi?distro=centos-stream-8",
"ecosystem": "TuxCare:CentOS-Stream:8"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1781101271.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.19.4-4.el8.tuxcare.els2"
}
]
}
],
"package": {
"name": "libnetapi-devel",
"purl": "pkg:rpm/tuxcare/libnetapi-devel?distro=centos-stream-8",
"ecosystem": "TuxCare:CentOS-Stream:8"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1781101271.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.19.4-4.el8.tuxcare.els2"
}
]
}
],
"package": {
"name": "libsmbclient",
"purl": "pkg:rpm/tuxcare/libsmbclient?distro=centos-stream-8",
"ecosystem": "TuxCare:CentOS-Stream:8"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1781101271.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.19.4-4.el8.tuxcare.els2"
}
]
}
],
"package": {
"name": "libsmbclient-devel",
"purl": "pkg:rpm/tuxcare/libsmbclient-devel?distro=centos-stream-8",
"ecosystem": "TuxCare:CentOS-Stream:8"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1781101271.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.19.4-4.el8.tuxcare.els2"
}
]
}
],
"package": {
"name": "libwbclient",
"purl": "pkg:rpm/tuxcare/libwbclient?distro=centos-stream-8",
"ecosystem": "TuxCare:CentOS-Stream:8"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1781101271.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.19.4-4.el8.tuxcare.els2"
}
]
}
],
"package": {
"name": "libwbclient-devel",
"purl": "pkg:rpm/tuxcare/libwbclient-devel?distro=centos-stream-8",
"ecosystem": "TuxCare:CentOS-Stream:8"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1781101271.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.19.4-4.el8.tuxcare.els2"
}
]
}
],
"package": {
"name": "python3-samba",
"purl": "pkg:rpm/tuxcare/python3-samba?distro=centos-stream-8",
"ecosystem": "TuxCare:CentOS-Stream:8"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1781101271.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.19.4-4.el8.tuxcare.els2"
}
]
}
],
"package": {
"name": "python3-samba-dc",
"purl": "pkg:rpm/tuxcare/python3-samba-dc?distro=centos-stream-8",
"ecosystem": "TuxCare:CentOS-Stream:8"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1781101271.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.19.4-4.el8.tuxcare.els2"
}
]
}
],
"package": {
"name": "python3-samba-devel",
"purl": "pkg:rpm/tuxcare/python3-samba-devel?distro=centos-stream-8",
"ecosystem": "TuxCare:CentOS-Stream:8"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1781101271.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.19.4-4.el8.tuxcare.els2"
}
]
}
],
"package": {
"name": "python3-samba-test",
"purl": "pkg:rpm/tuxcare/python3-samba-test?distro=centos-stream-8",
"ecosystem": "TuxCare:CentOS-Stream:8"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1781101271.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.19.4-4.el8.tuxcare.els2"
}
]
}
],
"package": {
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],
"modified": "2026-10-26T09:31:37.610804587Z",
"provider": "osv",
"upstream": [
"CVE-2026-3012",
"CVE-2026-4408"
],
"references": [
"https://errata.tuxcare.com/els_os/centos-stream8els/CLSA-2026-1781101271.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-3012",
"https://nvd.nist.gov/vuln/detail/CVE-2026-4408"
]
},
"related_cves": [
{
"value": "CVE-2026-3012",
"evidence": "/upstream"
},
{
"value": "CVE-2026-4408",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 447902,
"published_at": "2026-06-10T14:21:28+00:00"
}