{"cve":{"cve_id":"CVE-2026-12064","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":0.00399,"epss_percentile":0.32569,"epss_as_of":"2026-10-15","description":"When a user invokes curl using a schemeless URL combined with\n`--proto-default` sftp (or scp), a disconnect occurs between the tool layer\nand libcurl. The tool layer incorrectly infers the URL scheme, which\nerroneously bypasses the initialization of critical SSH security options like\nCURLOPT_SSH_HOST_PUBLIC_KEY_SHA256 and CURLOPT_SSH_KNOWNHOSTS. Conversely, the\nlibcurl runtime successfully honors CURLOPT_DEFAULT_PROTOCOL and establishes\nthe connection via SFTP/SCP as specified. Because the tool layer skipped the\nsecurity configuration, these SSH host verification options are silently\nomitted, causing curl to connect to an unverified SSH remote host without\nthrowing an error.","published_at":"2026-07-03T06:13:55.302000Z","last_modified_at":"2026-09-15T07:16:26.150000Z","cvss_v3_score":7.5,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":"poc","ssvc_automatable":true,"ssvc_technical_impact":"partial","cwes":["CWE-297"],"nvd_references":["https://curl.se/docs/CVE-2026-12064.json","https://curl.se/docs/CVE-2026-12064.html","https://hackerone.com/reports/3797526"],"vuln_status":"Modified","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":"2026-07-03T07:34:23.731878Z","updated_at":"2026-09-16T00:00:38.137528Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"N","value_label":"None"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"N","value_label":"None"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"18270893abdb19f0ca170c118f8a2847dbd304be","version_start_inclusive":true,"version_end":"ab3bb8cd8be8f9d4acb97da0418abc279182041e","version_end_inclusive":false,"cpe23_uri":"cve5:curl:curl:18270893abdb19f0ca170c118f8a2847dbd304be:ab3bb8cd8be8f9d4acb97da0418abc279182041e"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.19.0","version_start_inclusive":true,"version_end":"8.19.0","version_end_inclusive":true,"cpe23_uri":"cve5:curl:curl:8.19.0:8.19.0"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.18.0","version_start_inclusive":true,"version_end":"8.18.0","version_end_inclusive":true,"cpe23_uri":"cve5:curl:curl:8.18.0:8.18.0"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.17.0","version_start_inclusive":true,"version_end":"8.17.0","version_end_inclusive":true,"cpe23_uri":"cve5:curl:curl:8.17.0:8.17.0"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.16.0","version_start_inclusive":true,"version_end":"8.16.0","version_end_inclusive":true,"cpe23_uri":"cve5:curl:curl:8.16.0:8.16.0"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.15.0","version_start_inclusive":true,"version_end":"8.15.0","version_end_inclusive":true,"cpe23_uri":"cve5:curl:curl:8.15.0:8.15.0"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.14.1","version_start_inclusive":true,"version_end":"8.14.1","version_end_inclusive":true,"cpe23_uri":"cve5:curl:curl:8.14.1:8.14.1"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.14.0","version_start_inclusive":true,"version_end":"8.14.0","version_end_inclusive":true,"cpe23_uri":"cve5:curl:curl:8.14.0:8.14.0"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.13.0","version_start_inclusive":true,"version_end":"8.13.0","version_end_inclusive":true,"cpe23_uri":"cve5:curl:curl:8.13.0:8.13.0"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.12.1","version_start_inclusive":true,"version_end":"8.12.1","version_end_inclusive":true,"cpe23_uri":"cve5:curl:curl:8.12.1:8.12.1"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.12.0","version_start_inclusive":true,"version_end":"8.12.0","version_end_inclusive":true,"cpe23_uri":"cve5:curl:curl:8.12.0:8.12.0"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.11.1","version_start_inclusive":true,"version_end":"8.11.1","version_end_inclusive":true,"cpe23_uri":"cve5:curl:curl:8.11.1:8.11.1"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.11.0","version_start_inclusive":true,"version_end":"8.11.0","version_end_inclusive":true,"cpe23_uri":"cve5:curl:curl:8.11.0:8.11.0"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.10.1","version_start_inclusive":true,"version_end":"8.10.1","version_end_inclusive":true,"cpe23_uri":"cve5:curl:curl:8.10.1:8.10.1"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.10.0","version_start_inclusive":true,"version_end":"8.10.0","version_end_inclusive":true,"cpe23_uri":"cve5:curl:curl:8.10.0:8.10.0"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.9.1","version_start_inclusive":true,"version_end":"8.9.1","version_end_inclusive":true,"cpe23_uri":"cve5:curl:curl:8.9.1:8.9.1"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.9.0","version_start_inclusive":true,"version_end":"8.9.0","version_end_inclusive":true,"cpe23_uri":"cve5:curl:curl:8.9.0:8.9.0"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.8.0","version_start_inclusive":true,"version_end":"8.8.0","version_end_inclusive":true,"cpe23_uri":"cve5:curl:curl:8.8.0:8.8.0"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.7.1","version_start_inclusive":true,"version_end":"8.7.1","version_end_inclusive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