{
   "document": {
      "aggregate_severity": {
         "text": "medium"
      },
      "category": "csaf_security_advisory",
      "csaf_version": "2.0",
      "distribution": {
         "tlp": {
            "label": "WHITE",
            "url": "https://www.first.org/tlp/"
         }
      },
      "lang": "en",
      "notes": [
         {
            "category": "description",
            "text": "PDF::WebKit versions through 1.2 for Perl allow OS command injection via a 2-arg open() of the output path in to_pdf and of stylesheet paths in _style_tag_for.\n\nto_pdf reads the generated PDF back from its path argument, and _style_tag_for reads each entry of the stylesheets list, by assigning the path to a local @ARGV and reading it with the diamond operator, which opens each @ARGV element with Perl's 2-arg open(). A value that begins or ends with a pipe (\"| cmd\", \"cmd |\") is run as a command rather than opened as a file, and one that begins with a redirect (\"> path\", \">> path\") opens that path for write or append. to_file forwards its path argument to to_pdf and reaches the same read.\n\nAny caller that forwards untrusted input as the output path or as a stylesheets entry can run a command under the process UID; with the \"cmd |\" form the command's output is returned in place of the PDF, and with the \"> path\" form the named file is truncated. Stylesheets may only be added to an HTML source, so a URL or file source exposes the output path alone.",
            "title": "Vulnerability Description"
         }
      ],
      "publisher": {
         "category": "other",
         "contact_details": "gdt@cpan.org",
         "name": "giterlizzi",
         "namespace": "https://github.com/giterlizzi/"
      },
      "references": [
         {
            "category": "self",
            "summary": "CPANSA-PDF-WebKit-2026-17431 JSON",
            "url": "https://raw.githubusercontent.com/giterlizzi/perl-CPANSA-CSAF/develop/csaf/white/2026/cpansa-pdf-webkit-2026-17431.json"
         },
         {
            "category": "external",
            "summary": "https://github.com/kingpong/perl-PDF-WebKit/issues/8",
            "url": "https://github.com/kingpong/perl-PDF-WebKit/issues/8"
         },
         {
            "category": "external",
            "summary": "https://security.metacpan.org/patches/P/PDF-WebKit/1.2/CVE-2026-17431-r1.patch",
            "url": "https://security.metacpan.org/patches/P/PDF-WebKit/1.2/CVE-2026-17431-r1.patch"
         },
         {
            "category": "external",
            "summary": "https://wkhtmltopdf.org/status.html",
            "url": "https://wkhtmltopdf.org/status.html"
         },
         {
            "category": "external",
            "summary": "http://www.openwall.com/lists/oss-security/2026/08/13/3",
            "url": "http://www.openwall.com/lists/oss-security/2026/08/13/3"
         },
         {
            "category": "external",
            "summary": "CVE-2026-17431 (NVD)",
            "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-17431"
         }
      ],
      "title": "PDF-WebKit vulnerability",
      "tracking": {
         "current_release_date": "2026-08-13T00:00:00",
         "generator": {
            "engine": {
               "name": "CSAF Perl Toolkit",
               "version": "0.26"
            }
         },
         "id": "CPANSA-PDF-WebKit-2026-17431",
         "initial_release_date": "2026-08-13T00:00:00",
         "revision_history": [
            {
               "date": "2026-08-13T00:00:00",
               "number": "1",
               "summary": "First release"
            }
         ],
         "status": "final",
         "version": "1"
      }
   },
   "product_tree": {
      "branches": [
         {
            "branches": [
               {
                  "category": "product_version_range",
                  "name": "vers:cpan/>0",
                  "product": {
                     "name": "PDF-WebKit greater than 0",
                     "product_id": "CSAFPID-0001",
                     "product_identification_helper": {
                        "purl": "pkg:cpan/PDF-WebKit"
                     }
                  }
               }
            ],
            "category": "product_name",
            "name": "PDF-WebKit"
         }
      ]
   },
   "vulnerabilities": [
      {
         "cve": "CVE-2026-17431",
         "cwe": {
            "id": "CWE-73",
            "name": "External Control of File Name or Path"
         },
         "notes": [
            {
               "category": "description",
               "text": "PDF::WebKit versions through 1.2 for Perl allow OS command injection via a 2-arg open() of the output path in to_pdf and of stylesheet paths in _style_tag_for.\n\nto_pdf reads the generated PDF back from its path argument, and _style_tag_for reads each entry of the stylesheets list, by assigning the path to a local @ARGV and reading it with the diamond operator, which opens each @ARGV element with Perl's 2-arg open(). A value that begins or ends with a pipe (\"| cmd\", \"cmd |\") is run as a command rather than opened as a file, and one that begins with a redirect (\"> path\", \">> path\") opens that path for write or append. to_file forwards its path argument to to_pdf and reaches the same read.\n\nAny caller that forwards untrusted input as the output path or as a stylesheets entry can run a command under the process UID; with the \"cmd |\" form the command's output is returned in place of the PDF, and with the \"> path\" form the named file is truncated. Stylesheets may only be added to an HTML source, so a URL or file source exposes the output path alone.",
               "title": "Vulnerability Description"
            }
         ],
         "product_status": {
            "known_affected": [
               "CSAFPID-0001"
            ]
         },
         "scores": [
            {
               "cvss_v3": {
                  "baseScore": 6.1,
                  "baseSeverity": "MEDIUM",
                  "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N",
                  "version": "3.1"
               },
               "products": [
                  "CSAFPID-0001"
               ]
            }
         ]
      }
   ]
}