USN-8626-1 (UBUNTU-CVE-2026-15059)
Vulnerability from osv_ubuntu – Published: 2026-08-10 13:46 – Updated: 2026-08-12 02:03 – Source website
VLAI
Summary
systemd vulnerabilities
Details
It was discovered that systemd-homed did not properly verify the signature of home records. A local attacker could possibly use this issue to add arbitrary system groups to a logged-in user and gain elevated privileges. (CVE-2026-16742)
It was discovered that systemd-machined incorrectly handled certain polkit authorization checks. A local attacker could possibly use this issue to terminate arbitrary processes, including privileged ones. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-15060)
It was discovered that systemd-oomd did not properly validate certain IPC requests. A local attacker could possibly use this issue to terminate arbitrary processes. (CVE-2026-15059)
References
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-15059",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-16742",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:22.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libnss-myhostname",
"binary_version": "249.11-0ubuntu3.22"
},
{
"binary_name": "libnss-mymachines",
"binary_version": "249.11-0ubuntu3.22"
},
{
"binary_name": "libnss-resolve",
"binary_version": "249.11-0ubuntu3.22"
},
{
"binary_name": "libnss-systemd",
"binary_version": "249.11-0ubuntu3.22"
},
{
"binary_name": "libpam-systemd",
"binary_version": "249.11-0ubuntu3.22"
},
{
"binary_name": "libsystemd0",
"binary_version": "249.11-0ubuntu3.22"
},
{
"binary_name": "libudev1",
"binary_version": "249.11-0ubuntu3.22"
},
{
"binary_name": "systemd",
"binary_version": "249.11-0ubuntu3.22"
},
{
"binary_name": "systemd-container",
"binary_version": "249.11-0ubuntu3.22"
},
{
"binary_name": "systemd-coredump",
"binary_version": "249.11-0ubuntu3.22"
},
{
"binary_name": "systemd-journal-remote",
"binary_version": "249.11-0ubuntu3.22"
},
{
"binary_name": "systemd-oomd",
"binary_version": "249.11-0ubuntu3.22"
},
{
"binary_name": "systemd-repart",
"binary_version": "249.11-0ubuntu3.22"
},
{
"binary_name": "systemd-standalone-sysusers",
"binary_version": "249.11-0ubuntu3.22"
},
{
"binary_name": "systemd-standalone-tmpfiles",
"binary_version": "249.11-0ubuntu3.22"
},
{
"binary_name": "systemd-sysv",
"binary_version": "249.11-0ubuntu3.22"
},
{
"binary_name": "systemd-tests",
"binary_version": "249.11-0ubuntu3.22"
},
{
"binary_name": "systemd-timesyncd",
"binary_version": "249.11-0ubuntu3.22"
},
{
"binary_name": "udev",
"binary_version": "249.11-0ubuntu3.22"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "systemd",
"purl": "pkg:deb/ubuntu/systemd@249.11-0ubuntu3.22?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "249.11-0ubuntu3.22"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"248.3-1ubuntu8",
"249.5-2ubuntu1",
"249.5-2ubuntu2",
"249.5-2ubuntu3",
"249.5-2ubuntu4",
"249.9-0ubuntu2",
"249.10-0ubuntu1",
"249.10-0ubuntu2",
"249.11-0ubuntu1",
"249.11-0ubuntu2",
"249.11-0ubuntu3",
"249.11-0ubuntu3.1",
"249.11-0ubuntu3.3",
"249.11-0ubuntu3.4",
"249.11-0ubuntu3.6",
"249.11-0ubuntu3.7",
"249.11-0ubuntu3.9",
"249.11-0ubuntu3.10",
"249.11-0ubuntu3.11",
"249.11-0ubuntu3.12",
"249.11-0ubuntu3.15",
"249.11-0ubuntu3.16",
"249.11-0ubuntu3.17",
"249.11-0ubuntu3.19",
"249.11-0ubuntu3.20",
"249.11-0ubuntu3.21"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-15059",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-16742",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:24.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libnss-myhostname",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "libnss-mymachines",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "libnss-resolve",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "libnss-systemd",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "libpam-systemd",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "libsystemd-shared",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "libsystemd0",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "libudev1",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "systemd",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "systemd-boot",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "systemd-boot-efi",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "systemd-container",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "systemd-coredump",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "systemd-homed",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "systemd-journal-remote",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "systemd-oomd",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "systemd-resolved",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "systemd-standalone-sysusers",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "systemd-standalone-tmpfiles",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "systemd-sysv",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "systemd-tests",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "systemd-timesyncd",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "systemd-ukify",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "systemd-userdbd",
"binary_version": "255.4-1ubuntu8.17"
},
{
"binary_name": "udev",
"binary_version": "255.4-1ubuntu8.17"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "systemd",
"purl": "pkg:deb/ubuntu/systemd@255.4-1ubuntu8.17?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "255.4-1ubuntu8.17"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"253.5-1ubuntu6",
"253.5-1ubuntu7",
"255.2-3ubuntu2",
"255.4-1ubuntu5",
"255.4-1ubuntu6",
"255.4-1ubuntu7",
"255.4-1ubuntu8",
"255.4-1ubuntu8.1",
"255.4-1ubuntu8.2",
"255.4-1ubuntu8.4",
"255.4-1ubuntu8.5",
"255.4-1ubuntu8.6",
"255.4-1ubuntu8.8",
"255.4-1ubuntu8.10",
"255.4-1ubuntu8.11",
"255.4-1ubuntu8.12",
"255.4-1ubuntu8.14",
"255.4-1ubuntu8.15",
"255.4-1ubuntu8.16"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-15059",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-15060",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-16742",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:26.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libnss-myhostname",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "libnss-mymachines",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "libnss-resolve",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "libnss-systemd",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "libpam-systemd",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "libsystemd-shared",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "libsystemd0",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "libudev1",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "systemd",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "systemd-boot",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "systemd-boot-efi",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "systemd-boot-tools",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "systemd-container",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "systemd-coredump",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "systemd-cryptsetup",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "systemd-homed",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "systemd-journal-remote",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "systemd-oomd",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "systemd-repart",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "systemd-resolved",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "systemd-standalone-shutdown",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "systemd-standalone-sysusers",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "systemd-standalone-tmpfiles",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "systemd-sysv",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "systemd-tests",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "systemd-timesyncd",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "systemd-ukify",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "systemd-userdbd",
"binary_version": "259.5-0ubuntu3.4"
},
{
"binary_name": "udev",
"binary_version": "259.5-0ubuntu3.4"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "systemd",
"purl": "pkg:deb/ubuntu/systemd@259.5-0ubuntu3.4?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "259.5-0ubuntu3.4"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"257.9-0ubuntu2",
"259-1ubuntu2",
"259-1ubuntu3",
"259.3-0ubuntu1",
"259.5-0ubuntu1",
"259.5-0ubuntu2",
"259.5-0ubuntu3",
"259.5-0ubuntu3.3"
]
}
],
"aliases": [],
"details": "It was discovered that systemd-homed did not properly verify the signature\nof home records. A local attacker could possibly use this issue to add\narbitrary system groups to a logged-in user and gain elevated privileges.\n(CVE-2026-16742)\n\nIt was discovered that systemd-machined incorrectly handled certain polkit\nauthorization checks. A local attacker could possibly use this issue to\nterminate arbitrary processes, including privileged ones. This issue only\naffected Ubuntu 26.04 LTS. (CVE-2026-15060)\n\nIt was discovered that systemd-oomd did not properly validate certain IPC\nrequests. A local attacker could possibly use this issue to terminate\narbitrary processes. (CVE-2026-15059)",
"id": "USN-8626-1",
"modified": "2026-08-12T02:03:00Z",
"published": "2026-08-10T13:46:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8626-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-15059"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-15060"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-16742"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "systemd vulnerabilities",
"upstream": [
"UBUNTU-CVE-2026-15059",
"UBUNTU-CVE-2026-15060",
"UBUNTU-CVE-2026-16742"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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.
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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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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