{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "modules": [
            "WebDyne"
          ],
          "packageName": "WebDyne",
          "packageURL": "pkg:cpan/WebDyne",
          "programFiles": [
            "lib/WebDyne/PSGI.pm"
          ],
          "programRoutines": [
            {
              "name": "WebDyne::PSGI::api_filename"
            }
          ],
          "repo": "https://github.com/aspeer/WebDyne",
          "versions": [
            {
              "lessThan": "3.022",
              "status": "affected",
              "version": "3.007",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "WebDyne versions from 3.007 before 3.022 for Perl execute .psp files outside the document root via path traversal in the PSGI API route fallback.\n\nWhen a request matches no file, the PSGI handler retries it as an API route through api_filename. That keeps .. segments in the request path and only checks that the joined path starts with the document root, which a request for /../private passes.\n\nA remote attacker can run the embedded Perl in any .psp file the server can read, such as one uploaded to a directory outside the document root."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-31T14:33:55.211Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://metacpan.org/release/ASPEER/WebDyne-3.022/changes"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to WebDyne 3.022 or later."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "WebDyne versions from 3.007 before 3.022 for Perl execute .psp files outside the document root via path traversal in the PSGI API route fallback",
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-78189",
    "datePublished": "2026-10-31T14:33:55.211Z",
    "dateReserved": "2026-08-23T18:38:50.604Z",
    "dateUpdated": "2026-10-31T14:33:55.211Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}