USN-8892-1 (UBUNTU-CVE-2026-102371)
Vulnerability from osv_ubuntu – Published: 2026-10-06 20:11 – Updated: 2026-10-06 20:11 – Source website
VLAI
Summary
wsl-pro-service vulnerability
Details
Darshan U discovered that Ubuntu Pro for WSL exposed the attach token in command-line arguments when enabling a subscription on a WSL instance. An attacker could possibly use this issue to obtain sensitive information and gain unauthorized access to Ubuntu Pro repositories.
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-102371",
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:20.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "wsl-pro-service",
"binary_version": "0.1.18~20.04.2+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "wsl-pro-service",
"purl": "pkg:deb/ubuntu/wsl-pro-service@0.1.18~20.04.2+esm1?arch=source\u0026distro=esm-apps/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.1.18~20.04.2+esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.1.18~20.04.2"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-102371",
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:22.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "wsl-pro-service",
"binary_version": "0.1.18~22.04.3"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "wsl-pro-service",
"purl": "pkg:deb/ubuntu/wsl-pro-service@0.1.18~22.04.3?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.1.18~22.04.3"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.1.18~22.04.2"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-102371",
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:24.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "wsl-pro-service",
"binary_version": "0.1.18~24.04.4"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "wsl-pro-service",
"purl": "pkg:deb/ubuntu/wsl-pro-service@0.1.18~24.04.4?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.1.18~24.04.4"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.1",
"0.1.1",
"0.1.2",
"0.1.2build1",
"0.1.4",
"0.1.18~24.04.3"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-102371",
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:26.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "wsl-pro-service",
"binary_version": "0.1.19ubuntu2.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "wsl-pro-service",
"purl": "pkg:deb/ubuntu/wsl-pro-service@0.1.19ubuntu2.1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.1.19ubuntu2.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.1.18",
"0.1.18build1",
"0.1.19ubuntu1",
"0.1.19ubuntu2"
]
}
],
"aliases": [],
"details": "Darshan U discovered that Ubuntu Pro for WSL exposed the attach token in\ncommand-line arguments when enabling a subscription on a WSL instance.\nAn attacker could possibly use this issue to obtain sensitive information\nand gain unauthorized access to Ubuntu Pro repositories.",
"id": "USN-8892-1",
"modified": "2026-10-06T20:11:42Z",
"published": "2026-10-06T20:11:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8892-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-102371"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "wsl-pro-service vulnerability",
"upstream": [
"UBUNTU-CVE-2026-102371"
]
}
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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
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- Confirmed: The vulnerability has been validated from an analyst's perspective.
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- Not confirmed: The user expressed doubt about the validity of the vulnerability.
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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
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