Vulnerability Instance

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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/67609?format=api",
    "vulnerability_id": "VCID-pcw5-mrga-xyeh",
    "summary": "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.",
    "aliases": [
        {
            "alias": "CVE-2026-44709"
        }
    ],
    "fixed_packages": [],
    "affected_packages": [],
    "references": [
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-44709",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.00023",
                    "scoring_system": "epss",
                    "scoring_elements": "0.06721",
                    "published_at": "2026-06-11T12:55:00Z"
                },
                {
                    "value": "0.00023",
                    "scoring_system": "epss",
                    "scoring_elements": "0.06741",
                    "published_at": "2026-06-12T12:55:00Z"
                },
                {
                    "value": "0.00023",
                    "scoring_system": "epss",
                    "scoring_elements": "0.0673",
                    "published_at": "2026-06-13T12:55:00Z"
                },
                {
                    "value": "0.00023",
                    "scoring_system": "epss",
                    "scoring_elements": "0.06713",
                    "published_at": "2026-06-14T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-44709"
        },
        {
            "reference_url": "https://github.com/mcdope/pam_usb/security/advisories/GHSA-jxrj-q67x-wr4c",
            "reference_id": "GHSA-jxrj-q67x-wr4c",
            "reference_type": "",
            "scores": [
                {
                    "value": "7.8",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "value": "Track*",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:P/A:N/T:T/P:M/B:A/M:M/D:R/2026-06-02T17:58:32Z/"
                }
            ],
            "url": "https://github.com/mcdope/pam_usb/security/advisories/GHSA-jxrj-q67x-wr4c"
        }
    ],
    "weaknesses": [
        {
            "cwe_id": 78,
            "name": "Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')",
            "description": "The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component."
        }
    ],
    "exploits": [],
    "severity_range_score": "7.8 - 7.8",
    "exploitability": null,
    "weighted_severity": null,
    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-pcw5-mrga-xyeh"
}