{"cve":{"cve_id":"CVE-2026-21893","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":0.01343,"epss_percentile":0.67721,"epss_as_of":"2026-06-23","description":"n8n is an open source workflow automation platform. From version 0.187.0 to before 1.120.3, a command injection vulnerability was identified in n8n’s community package installation functionality. The issue allowed authenticated users with administrative permissions to execute arbitrary system commands on the n8n host under specific conditions. This issue has been patched in version 1.120.3.","published_at":"2026-02-04T17:36:51.690000Z","last_modified_at":null,"cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"cvss_v4_score":9.4,"cvss_v4_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","cvss_v4_severity":"CRITICAL","ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-78","CWE-20"],"nvd_references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-7c4h-vh2m-743m","https://github.com/n8n-io/n8n/commit/ae0669a736cc496beeb296e115267862727ae838"],"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":"2026-06-28T23:29:08.013930Z"},"effective_severity":"CRITICAL","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":"H","value_label":"High"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"VC","name":"Confidentiality (Vulnerable System)","value":"H","value_label":"High"},{"metric":"VI","name":"Integrity (Vulnerable System)","value":"H","value_label":"High"},{"metric":"VA","name":"Availability (Vulnerable System)","value":"H","value_label":"High"},{"metric":"SC","name":"Confidentiality (Subsequent System)","value":"H","value_label":"High"},{"metric":"SI","name":"Integrity (Subsequent System)","value":"H","value_label":"High"},{"metric":"SA","name":"Availability (Subsequent System)","value":"H","value_label":"High"}]},"affected":[{"vendor_slug":"n8n-io","vendor_name":"n8n-io","product_slug":"n8n","product_name":"n8n","version_start":">= 0.187.0, < 1.120.3","version_start_inclusive":true,"version_end":">= 0.187.0, < 1.120.3","version_end_inclusive":true,"cpe23_uri":"cve5:n8n-io:n8n:>= 0.187.0, < 1.120.3:>= 0.187.0, < 1.120.3"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-7c4h-vh2m-743m","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://github.com/n8n-io/n8n/commit/ae0669a736cc496beeb296e115267862727ae838","source_type":"PATCH","tags":["patch"]}],"timeline":[{"type":"published","at":"2026-02-04T17:36:51.690000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:51:33.019078Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:51:33.019078Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:51:33.019078Z","label":"CVSS score revised","source":"cvelistv5"}]}