{"cve":{"cve_id":"CVE-2025-48934","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":0.00359,"epss_percentile":0.27629,"epss_as_of":"2026-06-23","description":"Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to versions 2.1.13 and 2.2.13, the `Deno.env.toObject` method ignores any variables listed in the `--deny-env` option of the `deno run` command. When looking at the documentation of the `--deny-env` option this might lead to a false impression that variables listed in the option are impossible to read. Software relying on the combination of both flags to allow access to most environment variables except a few sensitive ones will be vulnerable to malicious code trying to steal secrets using the `Deno.env.toObject()` method. Versions 2.1.13 and 2.2.13 contains a patch.","published_at":"2025-06-04T19:21:17.701000Z","last_modified_at":null,"cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"cvss_v4_score":5.5,"cvss_v4_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P","cvss_v4_severity":"MEDIUM","ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-201"],"nvd_references":["https://github.com/denoland/deno/security/advisories/GHSA-7w8p-chxq-2789","https://github.com/denoland/deno/pull/29079","https://github.com/denoland/deno/commit/2959e083912420988066a001c2b2d6732a1b562f","https://github.com/denoland/deno/commit/946ccda1aa19a00c478a5e6826b75053b050d753","https://docs.deno.com/api/deno/~/Deno.Env.toObject","https://docs.deno.com/runtime/fundamentals/security/#environment-variables"],"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":"2026-06-28T23:27:16.555994Z"},"effective_severity":"MEDIUM","badges":[],"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":"N","value_label":"None"},{"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":"L","value_label":"Low"},{"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"},{"metric":"E","name":"E","value":"P","value_label":"Physical"}]},"affected":[{"vendor_slug":"denoland","vendor_name":"denoland","product_slug":"deno","product_name":"deno","version_start":"< 2.1.13","version_start_inclusive":true,"version_end":"< 2.1.13","version_end_inclusive":true,"cpe23_uri":"cve5:denoland:deno:< 2.1.13:< 2.1.13"},{"vendor_slug":"denoland","vendor_name":"denoland","product_slug":"deno","product_name":"deno","version_start":">= 2.2.0, < 2.2.13","version_start_inclusive":true,"version_end":">= 2.2.0, < 2.2.13","version_end_inclusive":true,"cpe23_uri":"cve5:denoland:deno:>= 2.2.0, < 2.2.13:>= 2.2.0, < 2.2.13"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/denoland/deno/security/advisories/GHSA-7w8p-chxq-2789","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://github.com/denoland/deno/pull/29079","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/denoland/deno/commit/2959e083912420988066a001c2b2d6732a1b562f","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/denoland/deno/commit/946ccda1aa19a00c478a5e6826b75053b050d753","source_type":"PATCH","tags":["patch"]},{"url":"https://docs.deno.com/api/deno/~/Deno.Env.toObject","source_type":"MISC","tags":[]},{"url":"https://docs.deno.com/runtime/fundamentals/security/#environment-variables","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2025-06-04T19:21:17.701000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:46:59.738979Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:46:59.738979Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:46:59.738979Z","label":"CVSS score revised","source":"cvelistv5"}]}