{"cve":{"cve_id":"CVE-2026-39822","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":0.00232,"epss_percentile":0.13939,"epss_as_of":"2026-08-26","description":"On Unix systems, opening a file in an os.Root improperly follows symlinks to locations outside of the Root when the final path component of the a path is a symbolic link and the path ends in /. For example, 'root.Open(\"symlink/\")' will open \"symlink\" even when \"symlink\" is a symbolic link pointing outside of the root.","published_at":"2026-07-08T15:46:27.199000Z","last_modified_at":"2026-07-13T14:54:26.317000Z","cvss_v3_score":7.8,"cvss_v3_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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":false,"ssvc_technical_impact":"total","cwes":["CWE-61"],"nvd_references":["https://go.dev/issue/79005","https://groups.google.com/g/golang-announce/c/OrmQE_Yp5Sc","https://go.dev/cl/797880","https://pkg.go.dev/vuln/GO-2026-4970"],"vuln_status":"Analyzed","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":"2026-07-08T17:19:37.050991Z","updated_at":"2026-07-13T15:39:33.788709Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"L","value_label":"Local"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"L","value_label":"Low"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"golang","vendor_name":"Golang","product_slug":"go","product_name":"Go","version_start":null,"version_start_inclusive":null,"version_end":"1.25.12","version_end_inclusive":false,"cpe23_uri":"cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*"},{"vendor_slug":"golang","vendor_name":"Golang","product_slug":"go","product_name":"Go","version_start":"1.27","version_start_inclusive":true,"version_end":"1.27","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:golang:go:1.27:rc1:*:*:*:*:*:*"},{"vendor_slug":"go-standard-library","vendor_name":"Go standard library","product_slug":"os","product_name":"os","version_start":"0","version_start_inclusive":true,"version_end":"1.25.12","version_end_inclusive":false,"cpe23_uri":"cve5:go-standard-library:os:0:1.25.12"},{"vendor_slug":"go-standard-library","vendor_name":"Go standard library","product_slug":"os","product_name":"os","version_start":"1.26.0-0","version_start_inclusive":true,"version_end":"1.26.5","version_end_inclusive":false,"cpe23_uri":"cve5:go-standard-library:os:1.26.0-0:1.26.5"},{"vendor_slug":"go-standard-library","vendor_name":"Go standard library","product_slug":"os","product_name":"os","version_start":"1.27.0-0","version_start_inclusive":true,"version_end":"1.27.0-rc.2","version_end_inclusive":false,"cpe23_uri":"cve5:go-standard-library:os:1.27.0-0:1.27.0-rc.2"}],"exploit_refs":[],"news":[],"references":[{"url":"https://go.dev/issue/79005","source_type":"MISC","tags":[]},{"url":"https://groups.google.com/g/golang-announce/c/OrmQE_Yp5Sc","source_type":"MISC","tags":[]},{"url":"https://go.dev/cl/797880","source_type":"MISC","tags":[]},{"url":"https://pkg.go.dev/vuln/GO-2026-4970","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2026-07-08T15:46:27.199000Z","label":"CVE published","source":null},{"type":"ssvc_changed","at":"2026-07-08T20:20:37.048933Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-07-08T20:20:37.048933Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-07-08T20:20:37.048933Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-07-08T20:20:37.048933Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-07-08T20:20:37.048933Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-07-08T20:20:37.048933Z","label":"CVSS score revised","source":"vulnrichment"}]}