{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-44709",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-05-07T17:07:09.318Z",
        "datePublished": "2026-05-27T20:20:52.529Z",
        "dateUpdated": "2026-06-02T17:59:08.656Z"
    },
    "containers": {
        "cna": {
            "title": "pam_usb: PINENTRY_FALLBACK_APP environment variable allows arbitrary command execution",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-78",
                            "lang": "en",
                            "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "LOCAL",
                        "availabilityImpact": "HIGH",
                        "baseScore": 7.8,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "LOW",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/mcdope/pam_usb/security/advisories/GHSA-jxrj-q67x-wr4c",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/mcdope/pam_usb/security/advisories/GHSA-jxrj-q67x-wr4c"
                }
            ],
            "affected": [
                {
                    "vendor": "mcdope",
                    "product": "pam_usb",
                    "versions": [
                        {
                            "version": "< 0.8.7",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-05-27T20:20:52.529Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.8.7, pamusb-pinentry reads the PINENTRY_FALLBACK_APP environment variable and executes it directly without any validation. Any process that can set environment variables before pamusb-pinentry is invoked can point PINENTRY_FALLBACK_APP at an arbitrary binary or script and have it executed with the privileges of the pam_usb tool chain. This vulnerability is fixed in 0.8.7."
                }
            ],
            "source": {
                "advisory": "GHSA-jxrj-q67x-wr4c",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/mcdope/pam_usb/security/advisories/GHSA-jxrj-q67x-wr4c",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-06-02T17:58:32.295600Z",
                                "id": "CVE-2026-44709",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "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": "2026-06-02T17:59:08.656Z"
                }
            }
        ]
    }
}