{"api_version":"1","generated_at":"2026-11-01T09:41:13+00:00","cve":"CVE-2026-78189","urls":{"html":"https://cve.report/CVE-2026-78189","api":"https://cve.report/api/cve/CVE-2026-78189.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-78189","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-78189"},"summary":{"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","description":"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.","state":"PUBLISHED","assigner":"CPANSec","published_at":"2026-10-31 15:16:54","updated_at":"2026-10-31 15:16:54"},"problem_types":["CWE-22","CWE-22 CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"],"metrics":[],"references":[{"url":"https://metacpan.org/release/ASPEER/WebDyne-3.022/changes","name":"https://metacpan.org/release/ASPEER/WebDyne-3.022/changes","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-78189","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78189","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[{"source":"CNA","title":"","value":"Upgrade to WebDyne 3.022 or later.","time":"","lang":"en"}],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"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 ('Path Traversal')","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"},"nvd":{"publishedDate":"2026-10-31 15:16:54","lastModifiedDate":"2026-10-31 15:16:54","problem_types":["CWE-22","CWE-22 CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"78189","Ordinal":"1","Title":"WebDyne versions from 3.007 before 3.022 for Perl execute .psp f","CVE":"CVE-2026-78189","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"78189","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"WebDyne versions from 3.007 before 3.022 for Perl execute .psp f"}]}}}