{"cve":{"cve_id":"CVE-2026-39365","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.00914,"epss_percentile":0.55447,"epss_as_of":"2026-06-23","description":"Vite is a frontend tooling framework for JavaScript. From 6.0.0 to before 6.4.2, 7.3.2, and 8.0.5, the dev server’s handling of .map requests for optimized dependencies resolves file paths and calls readFile without restricting ../ segments in the URL. As a result, it is possible to bypass the server.fs.strict allow list and retrieve .map files located outside the project root, provided they can be parsed as valid source map JSON. This vulnerability is fixed in 6.4.2, 7.3.2, and 8.0.5.","published_at":"2026-04-07T19:13:50.927000Z","last_modified_at":null,"cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"cvss_v4_score":6.3,"cvss_v4_vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","cvss_v4_severity":"MEDIUM","ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-22"],"nvd_references":["https://github.com/vitejs/vite/security/advisories/GHSA-4w7w-66w2-5vf9"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:30:07.381684Z"},"effective_severity":"MEDIUM","badges":["poc"],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"cvss_v4_decoded":{"version":"4.0","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"AT","name":"Attack Requirements","value":"P","value_label":"Present"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"VC","name":"Confidentiality (Vulnerable System)","value":"L","value_label":"Low"},{"metric":"VI","name":"Integrity (Vulnerable System)","value":"N","value_label":"None"},{"metric":"VA","name":"Availability (Vulnerable System)","value":"N","value_label":"None"},{"metric":"SC","name":"Confidentiality (Subsequent System)","value":"N","value_label":"None"},{"metric":"SI","name":"Integrity (Subsequent System)","value":"N","value_label":"None"},{"metric":"SA","name":"Availability (Subsequent System)","value":"N","value_label":"None"}]},"affected":[{"vendor_slug":"vitejs","vendor_name":"vitejs","product_slug":"vite","product_name":"vite","version_start":">= 8.0.0, < 8.0.5","version_start_inclusive":true,"version_end":">= 8.0.0, < 8.0.5","version_end_inclusive":true,"cpe23_uri":"cve5:vitejs:vite:>= 8.0.0, < 8.0.5:>= 8.0.0, < 8.0.5"},{"vendor_slug":"vitejs","vendor_name":"vitejs","product_slug":"vite","product_name":"vite","version_start":">= 7.0.0, < 7.3.2","version_start_inclusive":true,"version_end":">= 7.0.0, < 7.3.2","version_end_inclusive":true,"cpe23_uri":"cve5:vitejs:vite:>= 7.0.0, < 7.3.2:>= 7.0.0, < 7.3.2"},{"vendor_slug":"vitejs","vendor_name":"vitejs","product_slug":"vite","product_name":"vite","version_start":">= 6.0.0, < 6.4.2","version_start_inclusive":true,"version_end":">= 6.0.0, < 6.4.2","version_end_inclusive":true,"cpe23_uri":"cve5:vitejs:vite:>= 6.0.0, < 6.4.2:>= 6.0.0, < 6.4.2"},{"vendor_slug":"vitejs","vendor_name":"vitejs","product_slug":"vite-plus","product_name":"vite-plus","version_start":"< 0.1.16","version_start_inclusive":true,"version_end":"< 0.1.16","version_end_inclusive":true,"cpe23_uri":"cve5:vitejs:vite-plus:< 0.1.16:< 0.1.16"}],"exploit_refs":[{"source":"nuclei","kind":"nuclei","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-39365.yaml","title":"Vite Dev Server - Path Traversal in Optimized Deps .map Handling","author":"theamanrawat","disclosed_at":null}],"news":[],"references":[{"url":"https://github.com/vitejs/vite/security/advisories/GHSA-4w7w-66w2-5vf9","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2026-04-07T19:13:50.927000Z","label":"CVE published","source":null},{"type":"poc_available","at":"2026-06-24T00:29:48.638073Z","label":"Public PoC available","source":"nuclei"},{"type":"cvss_changed","at":"2026-06-28T17:53:39.415886Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:53:39.415886Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:53:39.415886Z","label":"CVSS score revised","source":"cvelistv5"}]}