UBUNTU-CVE-2026-19550 (CVE-2026-19550)
Vulnerability from osv_ubuntu – Published: 2026-08-11 21:17 – Updated: 2026-08-24 07:32 – Source website
VLAI
Details
A flaw was found in FreeIPA. The trust-fetch-domains command is gated by a read-only permission on the trust object rather than a trust-administration permission, allowing an authenticated, non-privileged IPA user to trigger a privileged Active Directory trust refresh using an attacker-supplied server and credentials, resulting in unauthorized, attacker-controlled modification of trusted-domain and ID-range identity data in the IPA LDAP directory.
Severity
8.2 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "freeipa-client",
"binary_version": "3.3.4-0ubuntu3.1+esm1"
},
{
"binary_name": "python-freeipa",
"binary_version": "3.3.4-0ubuntu3.1+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"name": "freeipa",
"purl": "pkg:deb/ubuntu/freeipa@3.3.4-0ubuntu3.1+esm1?arch=source\u0026distro=esm-infra-legacy/trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.2.1-0ubuntu1",
"3.3.4-0ubuntu1",
"3.3.4-0ubuntu2",
"3.3.4-0ubuntu3",
"3.3.4-0ubuntu3.1",
"3.3.4-0ubuntu3.1+esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "freeipa-admintools",
"binary_version": "4.3.1-0ubuntu1+esm1"
},
{
"binary_name": "freeipa-client",
"binary_version": "4.3.1-0ubuntu1+esm1"
},
{
"binary_name": "freeipa-common",
"binary_version": "4.3.1-0ubuntu1+esm1"
},
{
"binary_name": "freeipa-server",
"binary_version": "4.3.1-0ubuntu1+esm1"
},
{
"binary_name": "freeipa-server-dns",
"binary_version": "4.3.1-0ubuntu1+esm1"
},
{
"binary_name": "freeipa-server-trust-ad",
"binary_version": "4.3.1-0ubuntu1+esm1"
},
{
"binary_name": "freeipa-tests",
"binary_version": "4.3.1-0ubuntu1+esm1"
},
{
"binary_name": "python-ipaclient",
"binary_version": "4.3.1-0ubuntu1+esm1"
},
{
"binary_name": "python-ipalib",
"binary_version": "4.3.1-0ubuntu1+esm1"
},
{
"binary_name": "python-ipaserver",
"binary_version": "4.3.1-0ubuntu1+esm1"
},
{
"binary_name": "python-ipatests",
"binary_version": "4.3.1-0ubuntu1+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "freeipa",
"purl": "pkg:deb/ubuntu/freeipa@4.3.1-0ubuntu1+esm1?arch=source\u0026distro=esm-apps/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.1.4-1",
"4.3.1-0ubuntu1",
"4.3.1-0ubuntu1+esm1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "freeipa-admintools",
"binary_version": "4.7.0~pre1+git20180411-2ubuntu2"
},
{
"binary_name": "freeipa-client",
"binary_version": "4.7.0~pre1+git20180411-2ubuntu2"
},
{
"binary_name": "freeipa-common",
"binary_version": "4.7.0~pre1+git20180411-2ubuntu2"
},
{
"binary_name": "freeipa-server",
"binary_version": "4.7.0~pre1+git20180411-2ubuntu2"
},
{
"binary_name": "freeipa-server-dns",
"binary_version": "4.7.0~pre1+git20180411-2ubuntu2"
},
{
"binary_name": "freeipa-server-trust-ad",
"binary_version": "4.7.0~pre1+git20180411-2ubuntu2"
},
{
"binary_name": "freeipa-tests",
"binary_version": "4.7.0~pre1+git20180411-2ubuntu2"
},
{
"binary_name": "python-ipaclient",
"binary_version": "4.7.0~pre1+git20180411-2ubuntu2"
},
{
"binary_name": "python-ipalib",
"binary_version": "4.7.0~pre1+git20180411-2ubuntu2"
},
{
"binary_name": "python-ipaserver",
"binary_version": "4.7.0~pre1+git20180411-2ubuntu2"
},
{
"binary_name": "python-ipatests",
"binary_version": "4.7.0~pre1+git20180411-2ubuntu2"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "freeipa",
"purl": "pkg:deb/ubuntu/freeipa@4.7.0~pre1+git20180411-2ubuntu2?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.4.4-3ubuntu1",
"4.4.4-4",
"4.7.0~pre1+git20180411-2ubuntu1",
"4.7.0~pre1+git20180411-2ubuntu2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "freeipa-client",
"binary_version": "4.8.6-1ubuntu2"
},
{
"binary_name": "freeipa-client-samba",
"binary_version": "4.8.6-1ubuntu2"
},
{
"binary_name": "freeipa-common",
"binary_version": "4.8.6-1ubuntu2"
},
{
"binary_name": "python3-ipaclient",
"binary_version": "4.8.6-1ubuntu2"
},
{
"binary_name": "python3-ipalib",
"binary_version": "4.8.6-1ubuntu2"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "freeipa",
"purl": "pkg:deb/ubuntu/freeipa@4.8.6-1ubuntu2?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.8.1-2ubuntu1",
"4.8.3-1",
"4.8.6-1ubuntu2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "freeipa-client",
"binary_version": "4.9.8-1"
},
{
"binary_name": "freeipa-client-epn",
"binary_version": "4.9.8-1"
},
{
"binary_name": "freeipa-client-samba",
"binary_version": "4.9.8-1"
},
{
"binary_name": "freeipa-common",
"binary_version": "4.9.8-1"
},
{
"binary_name": "python3-ipaclient",
"binary_version": "4.9.8-1"
},
{
"binary_name": "python3-ipalib",
"binary_version": "4.9.8-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "freeipa",
"purl": "pkg:deb/ubuntu/freeipa@4.9.8-1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.8.6-1ubuntu6",
"4.8.6-1ubuntu8",
"4.8.6-1ubuntu9",
"4.9.8-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "freeipa-client",
"binary_version": "4.11.1-2"
},
{
"binary_name": "freeipa-client-epn",
"binary_version": "4.11.1-2"
},
{
"binary_name": "freeipa-client-samba",
"binary_version": "4.11.1-2"
},
{
"binary_name": "freeipa-common",
"binary_version": "4.11.1-2"
},
{
"binary_name": "python3-ipaclient",
"binary_version": "4.11.1-2"
},
{
"binary_name": "python3-ipalib",
"binary_version": "4.11.1-2"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "freeipa",
"purl": "pkg:deb/ubuntu/freeipa@4.11.1-2?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.10.2-1",
"4.10.2-2",
"4.10.2-2ubuntu3",
"4.11.1-1",
"4.11.1-2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "freeipa-client",
"binary_version": "4.13.1-1"
},
{
"binary_name": "freeipa-client-epn",
"binary_version": "4.13.1-1"
},
{
"binary_name": "freeipa-client-samba",
"binary_version": "4.13.1-1"
},
{
"binary_name": "freeipa-common",
"binary_version": "4.13.1-1"
},
{
"binary_name": "python3-ipaclient",
"binary_version": "4.13.1-1"
},
{
"binary_name": "python3-ipalib",
"binary_version": "4.13.1-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "freeipa",
"purl": "pkg:deb/ubuntu/freeipa@4.13.1-1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.12.4-1",
"4.12.4-2",
"4.13.1-1"
]
}
],
"aliases": [],
"details": "A flaw was found in FreeIPA. The trust-fetch-domains command is gated by a read-only permission on the trust object rather than a trust-administration permission, allowing an authenticated, non-privileged IPA user to trigger a privileged Active Directory trust refresh using an attacker-supplied server and credentials, resulting in unauthorized, attacker-controlled modification of trusted-domain and ID-range identity data in the IPA LDAP directory.",
"id": "UBUNTU-CVE-2026-19550",
"modified": "2026-08-24T07:32:10Z",
"published": "2026-08-11T21:17:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-19550"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-19550"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2514019"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-19550"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-19550"
]
}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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