{"cve":{"cve_id":"CVE-2026-39830","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":0.00621,"epss_percentile":0.48651,"epss_as_of":"2026-10-15","description":"A malicious SSH peer could send unsolicited global request responses to fill an internal buffer, blocking the connection's read loop. The blocked goroutine could not be released by calling Close(), resulting in a resource leak per connection. Unsolicited global responses are now discarded.","published_at":"2026-05-22T02:31:27.208000Z","last_modified_at":"2026-09-16T13:17:53.697000Z","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":"none","ssvc_automatable":true,"ssvc_technical_impact":"partial","cwes":["CWE-772"],"nvd_references":["https://go.dev/issue/79564","https://groups.google.com/g/golang-announce/c/a082jnz-LvI","https://go.dev/cl/781640","https://go.dev/cl/781664","https://pkg.go.dev/vuln/GO-2026-5017"],"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":"2026-06-24T00:09:39.878444Z","updated_at":"2026-09-17T01:03:12.307245Z"},"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":"golang","vendor_name":"Golang","product_slug":"crypto","product_name":"crypto","version_start":null,"version_start_inclusive":null,"version_end":"0.52.0","version_end_inclusive":false,"cpe23_uri":"cpe:2.3:a:golang:crypto:*:*:*:*:*:go:*:*"},{"vendor_slug":"golang.org-x-crypto","vendor_name":"golang.org/x/crypto","product_slug":"golang.org-x-crypto-ssh","product_name":"golang.org/x/crypto/ssh","version_start":"0","version_start_inclusive":true,"version_end":"0.52.0","version_end_inclusive":false,"cpe23_uri":"cve5:golang.org-x-crypto:golang.org-x-crypto-ssh:0:0.52.0"}],"exploit_refs":[],"news":[],"references":[{"url":"https://go.dev/issue/79564","source_type":"MISC","tags":[]},{"url":"https://groups.google.com/g/golang-announce/c/a082jnz-LvI","source_type":"MISC","tags":[]},{"url":"https://go.dev/cl/781640","source_type":"MISC","tags":[]},{"url":"https://go.dev/cl/781664","source_type":"MISC","tags":[]},{"url":"https://pkg.go.dev/vuln/GO-2026-5017","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-05-22T02:31:27.208000Z","label":"CVE published","source":null},{"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"},{"type":"ssvc_changed","at":"2026-06-29T23:46:59.033383Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T23:46:59.033383Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T23:46:59.033383Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-07-02T13:23:34.995064Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-07-02T13:23:34.995064Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-07-02T13:23:34.995064Z","label":"CVSS score revised","source":"vulnrichment"}]}