{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-61897",
        "assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
        "state": "PUBLISHED",
        "assignerShortName": "canonical",
        "dateReserved": "2026-07-11T18:43:51.251Z",
        "datePublished": "2026-08-20T14:32:53.827Z",
        "dateUpdated": "2026-08-26T19:50:49.398Z"
    },
    "containers": {
        "cna": {
            "title": "accountsservice: incomplete privilege drop when running Ubuntu-specific language helper scripts",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "An Ubuntu-specific patch to AccountsService before 23.13.9-8ubuntu7 only partially drops privileges before launching language helper scripts. It changes the effective UID/GID to the target user but leaves the real UID as 0 (root). A shell spawned by a helper script inherits ruid=0 and may reset its effective UID to root, enabling local privilege escalation."
                }
            ],
            "affected": [
                {
                    "vendor": "Canonical",
                    "product": "accountsservice",
                    "packageName": "accountsservice",
                    "platforms": [
                        "Ubuntu 14.04 LTS",
                        "Ubuntu 16.04 LTS",
                        "Ubuntu 18.04 LTS",
                        "Ubuntu 20.04 LTS",
                        "Ubuntu 22.04 LTS",
                        "Ubuntu 24.04 LTS",
                        "Ubuntu 26.04 LTS",
                        "Ubuntu 26.10"
                    ],
                    "versions": [
                        {
                            "version": "22.07.5-2ubuntu1",
                            "status": "affected",
                            "lessThan": "22.07.5-2ubuntu1.6",
                            "versionType": "dpkg"
                        },
                        {
                            "version": "23.13.9-2ubuntu6",
                            "status": "affected",
                            "lessThan": "23.13.9-2ubuntu6.1",
                            "versionType": "dpkg"
                        },
                        {
                            "version": "23.13.9-8ubuntu5",
                            "status": "affected",
                            "lessThan": "23.13.9-8ubuntu5.2",
                            "versionType": "dpkg"
                        },
                        {
                            "version": "23.13.9-8ubuntu6",
                            "status": "affected",
                            "lessThan": "23.13.9-8ubuntu7",
                            "versionType": "dpkg"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "type": "CWE",
                            "cweId": "CWE-273",
                            "description": "CWE-273: Improper Check for Dropped Privileges"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                        "baseScore": 7.8,
                        "baseSeverity": "HIGH"
                    }
                }
            ],
            "references": [
                {
                    "url": "https://bugs.launchpad.net/ubuntu/+source/accountsservice/+bug/2157985",
                    "name": "Launchpad Bug #2157985",
                    "tags": [
                        "issue-tracking"
                    ]
                },
                {
                    "url": "https://ubuntu.com/security/CVE-2026-61897",
                    "name": "Ubuntu CVE Tracker",
                    "tags": [
                        "vendor-advisory"
                    ]
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "Deutsche Telekom Security GmbH Red Team"
                }
            ],
            "providerMetadata": {
                "orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
                "shortName": "canonical",
                "dateUpdated": "2026-08-20T14:32:53.827Z"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-08-26T19:43:37.600246Z",
                                "id": "CVE-2026-61897",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-08-26T19:50:49.398Z"
                }
            }
        ]
    }
}