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    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-110636",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-10-14T13:07:32.089Z",
        "datePublished": "2026-10-14T14:17:08.465Z",
        "dateUpdated": "2026-10-14T14:17:08.465Z"
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                "dateUpdated": "2026-10-14T14:17:08.465Z"
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            "datePublic": "2026-07-02T00:00:00.000Z",
            "title": "pypdftk through 0.5 OS Command Injection via PDF and Output Paths",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "pypdftk through 0.5 contains an OS command injection vulnerability in fill_form(), dump_data_fields(), and pdftk_cmd_util() that builds shell commands from caller-supplied paths. Attackers controlling pdf_path or out_file can inject shell metacharacters interpreted by subprocess.Popen with shell=True to execute OS commands as the Python process."
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                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')",
                            "cweId": "CWE-78",
                            "type": "CWE"
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                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "revolunet",
                    "product": "pypdftk",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "0",
                            "lessThanOrEqual": "0.5",
                            "status": "affected",
                            "versionType": "custom"
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                    "packageURL": "pkg:pypi/pypdftk",
                    "collectionURL": "https://pypi.org",
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                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 9.3,
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                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
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                        "integrityImpact": "HIGH",
                        "availabilityImpact": "HIGH",
                        "baseScore": 9.8,
                        "baseSeverity": "CRITICAL"
                    }
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            ],
            "references": [
                {
                    "url": "https://github.com/revolunet/pypdftk/issues/56",
                    "tags": [
                        "issue-tracking"
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                },
                {
                    "url": "https://github.com/revolunet/pypdftk/pull/57",
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                    "url": "https://github.com/revolunet/pypdftk/blob/1d3b40c3b42fb3cc6b0192d34aba2c21a1efd369/pypdftk.py#L87-L123",
                    "tags": [
                        "technical-description"
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                },
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                    "url": "https://github.com/revolunet/pypdftk",
                    "tags": [
                        "product"
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                {
                    "name": "VulnCheck Advisory: pypdftk through 0.5 OS Command Injection via PDF and Output Paths",
                    "tags": [
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                    "url": "https://www.vulncheck.com/advisories/pypdftk-through-0.5-os-command-injection-via-pdf-and-output-paths"
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                    "lang": "en",
                    "value": "Zachariah Mithani",
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