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    "cveMetadata": {
        "cveId": "CVE-2026-9494",
        "assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
        "state": "PUBLISHED",
        "assignerShortName": "canonical",
        "dateReserved": "2026-05-25T08:23:24.573Z",
        "datePublished": "2026-07-16T12:12:27.447Z",
        "dateUpdated": "2026-07-16T15:11:07.229Z"
    },
    "containers": {
        "cna": {
            "title": "ubuntu-pro-client Information Disclosure via Cleartext Bearer Token Exposure in Process Command Line",
            "datePublic": "2026-07-16T12:00:00.000Z",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-214",
                            "description": "CWE-214 Invocation of process using visible sensitive information",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-13",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-13 Subverting Environment Variable Values"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Canonical",
                    "product": "ubuntu-pro-client (ubuntu-advantage-tools)",
                    "platforms": [
                        "Linux"
                    ],
                    "collectionURL": "https://github.com/canonical/",
                    "packageName": "ubuntu-pro-client",
                    "repo": "https://github.com/canonical/ubuntu-pro-client",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "lessThan": "37.3",
                            "versionType": "python"
                        }
                    ],
                    "defaultStatus": "unaffected"
                },
                {
                    "vendor": "Canonical",
                    "product": "Ubuntu 26.04 LTS",
                    "platforms": [
                        "Linux"
                    ],
                    "collectionURL": "https://launchpad.net/ubuntu/resolute",
                    "packageName": "ubuntu-advantage-tools",
                    "repo": "https://launchpad.net/ubuntu/+source/ubuntu-advantage-tools",
                    "versions": [
                        {
                            "status": "unaffected",
                            "version": "37.2ubuntu0.1",
                            "versionType": "dpkg"
                        }
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                    "vendor": "Canonical",
                    "product": "Ubuntu 24.04 LTS",
                    "platforms": [
                        "Linux"
                    ],
                    "collectionURL": "https://launchpad.net/ubuntu/noble",
                    "packageName": "ubuntu-advantage-tools",
                    "repo": "https://launchpad.net/ubuntu/+source/ubuntu-advantage-tools",
                    "versions": [
                        {
                            "status": "unaffected",
                            "version": "37.2ubuntu~24.04.1",
                            "versionType": "dpkg"
                        }
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                {
                    "vendor": "Canonical",
                    "product": "Ubuntu 22.04 LTS",
                    "platforms": [
                        "Linux"
                    ],
                    "collectionURL": "https://launchpad.net/ubuntu/jammy",
                    "packageName": "ubuntu-advantage-tools",
                    "repo": "https://launchpad.net/ubuntu/+source/ubuntu-advantage-tools",
                    "versions": [
                        {
                            "status": "unaffected",
                            "version": "37.2ubuntu~22.04.1",
                            "versionType": "dpkg"
                        }
                    ],
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                {
                    "vendor": "Canonical",
                    "product": "Ubuntu 20.04 LTS",
                    "platforms": [
                        "Linux"
                    ],
                    "collectionURL": "https://launchpad.net/ubuntu/focal",
                    "packageName": "ubuntu-advantage-tools",
                    "repo": "https://launchpad.net/ubuntu/+source/ubuntu-advantage-tools",
                    "versions": [
                        {
                            "status": "unaffected",
                            "version": "37.1ubuntu0~20.04.1",
                            "versionType": "dpkg"
                        }
                    ],
                    "defaultStatus": "affected"
                },
                {
                    "vendor": "Canonical",
                    "product": "Ubuntu 18.04 LTS",
                    "platforms": [
                        "Linux"
                    ],
                    "collectionURL": "https://launchpad.net/ubuntu/bionic",
                    "packageName": "ubuntu-advantage-tools",
                    "repo": "https://launchpad.net/ubuntu/+source/ubuntu-advantage-tools",
                    "versions": [
                        {
                            "status": "unaffected",
                            "version": "37.1ubuntu0~18.04.1",
                            "versionType": "dpkg"
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                    "defaultStatus": "affected"
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                {
                    "vendor": "Canonical",
                    "product": "Ubuntu 16.04 LTS",
                    "platforms": [
                        "Linux"
                    ],
                    "collectionURL": "https://launchpad.net/ubuntu/xenial",
                    "packageName": "ubuntu-advantage-tools",
                    "repo": "https://launchpad.net/ubuntu/+source/ubuntu-advantage-tools",
                    "versions": [
                        {
                            "status": "unaffected",
                            "version": "37.1ubuntu0~16.04.1",
                            "versionType": "dpkg"
                        }
                    ],
                    "defaultStatus": "affected"
                },
                {
                    "vendor": "Canonical",
                    "product": "Ubuntu 14.04 LTS",
                    "platforms": [
                        "Linux"
                    ],
                    "collectionURL": "https://launchpad.net/ubuntu/trusty",
                    "packageName": "ubuntu-advantage-tools",
                    "repo": "https://launchpad.net/ubuntu/+source/ubuntu-advantage-tools",
                    "versions": [
                        {
                            "status": "unaffected",
                            "version": "19.7ubuntu0.1",
                            "versionType": "dpkg"
                        }
                    ],
                    "defaultStatus": "affected"
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            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "An information disclosure vulnerability exists in Canonical ubuntu-pro-client (formerly ubuntu-advantage-tools). The client validates Ubuntu Pro APT credentials by executing /usr/lib/apt/apt-helper using the download-file command. During this process, the secret bearer token is embedded directly in\nthe cleartext URL component passed via the command-line arguments (argv), resulting in a URL format such as https://bearer:<token>@esm.ubuntu.com/.../. On systems utilizing a default-mounted /proc file system where process-hiding mitigations (such as hidepid) are disabled, an unprivileged local attacker can\nmonitor system processes and read the sensitive bearer token directly from /proc/cmdline while the helper process is actively running. This leaked token can subsequently be used to gain unauthorized access to the victim's Ubuntu Pro or Expanded Security Maintenance (ESM) repositories.",
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                            "value": "An information disclosure vulnerability exists in Canonical ubuntu-pro-client<br>(formerly ubuntu-advantage-tools). The client validates Ubuntu Pro APT<br>credentials by executing /usr/lib/apt/apt-helper using the download-file<br>command. During this process, the secret bearer token is embedded directly in<br>the cleartext URL component passed via the command-line arguments (argv),<br>resulting in a URL format such as https://bearer:<token>@esm.ubuntu.com/.../.<br>On systems utilizing a default-mounted /proc file system where process-hiding<br>mitigations (such as hidepid) are disabled, an unprivileged local attacker can<br>monitor system processes and read the sensitive bearer token directly from<br>/proc/cmdline while the helper process is actively running. This leaked<br>token can subsequently be used to gain unauthorized access to the victim's<br>Ubuntu Pro or Expanded Security Maintenance (ESM) repositories.<br>"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://ubuntu.com/security/CVE-2026-9494",
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                        "version": "3.1",
                        "attackVector": "LOCAL",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "NONE",
                        "availabilityImpact": "NONE",
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                        "baseScore": 5.5,
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