{"cve":{"cve_id":"CVE-2026-80229","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":0.00563,"epss_percentile":0.45553,"epss_as_of":"2026-10-15","description":"When performing transfers via libcurl’s multi interface, pooled TLS\nconnections can outlive their originating easy handles. In OpenSSL 3 provider\nconfigurations, libcurl attaches an allocated library context to the easy\nhandle's state and passes it to OpenSSL without acquiring an ownership\nreference; destroying the easy handle prematurely frees this context while the\nactive connection retains a dangling pointer, leading to a heap-use-after-free\nupon subsequent I/O or post-handshake operations.","published_at":"2026-09-06T17:47:59.510000Z","last_modified_at":"2026-09-15T07:16:30.157000Z","cvss_v3_score":7.5,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-416"],"nvd_references":["https://curl.se/docs/CVE-2026-80229.json","https://curl.se/docs/CVE-2026-80229.html","https://hackerone.com/reports/3969255"],"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":"2026-09-06T19:37:54.192521Z","updated_at":"2026-09-16T00:06:57.780608Z"},"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":"N","value_label":"None"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"f2ce6c46b9dcc46ced0ce43fa95176ea7599a854","version_start_inclusive":true,"version_end":"7ea37abc6ac0120ba5f6d94be8d196f7cf1506bb","version_end_inclusive":false,"cpe23_uri":"cve5:curl:curl:f2ce6c46b9dcc46ced0ce43fa95176ea7599a854:7ea37abc6ac0120ba5f6d94be8d196f7cf1506bb"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.20.0","version_start_inclusive":true,"version_end":"8.20.0","version_end_inclusive":true,"cpe23_uri":"cve5:curl:curl:8.20.0:8.20.0"},{"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":"8.21.0","version_start_inclusive":true,"version_end":"8.21.0","version_end_inclusive":true,"cpe23_uri":"cve5:curl:curl:8.21.0:8.21.0"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.14.0","version_start_inclusive":true,"version_end":"8.14.2","version_end_inclusive":false,"cpe23_uri":"cve5:curl:curl:8.14.0:8.14.2"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.15.0","version_start_inclusive":true,"version_end":"8.16.1","version_end_inclusive":false,"cpe23_uri":"cve5:curl:curl:8.15.0:8.16.1"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.17.0","version_start_inclusive":true,"version_end":"8.20.1","version_end_inclusive":false,"cpe23_uri":"cve5:curl:curl:8.17.0:8.20.1"},{"vendor_slug":"curl","vendor_name":"curl","product_slug":"curl","product_name":"curl","version_start":"8.21.0","version_start_inclusive":true,"version_end":"8.22.0","version_end_inclusive":false,"cpe23_uri":"cve5:curl:curl:8.21.0:8.22.0"},{"vendor_slug":"haxx","vendor_name":"haxx","product_slug":"curl","product_name":"curl","version_start":"8.14.0","version_start_inclusive":true,"version_end":"8.22.0","version_end_inclusive":false,"cpe23_uri":"cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*"}],"exploit_refs":[],"news":[],"references":[{"url":"https://curl.se/docs/CVE-2026-80229.json","source_type":"MISC","tags":[]},{"url":"https://curl.se/docs/CVE-2026-80229.html","source_type":"MISC","tags":[]},{"url":"https://hackerone.com/reports/3969255","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-09-06T17:47:59.510000Z","label":"CVE 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