{"cve":{"cve_id":"CVE-2017-8438","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":0.01025,"epss_percentile":0.59082,"epss_as_of":"2026-06-23","description":"Elastic X-Pack Security versions 5.0.0 to 5.4.0 contain a privilege escalation bug in the run_as functionality. This bug prevents transitioning into the specified user specified in a run_as request. If a role has been created using a template that contains the _user properties, the behavior of run_as will be incorrect. Additionally if the run_as user specified does not exist, the transition will not happen.","published_at":"2017-06-05T14:00:00Z","last_modified_at":null,"cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"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-284"],"nvd_references":["https://discuss.elastic.co/t/elastic-stack-5-4-1-and-5-3-3-security-updates/87952","https://www.elastic.co/blog/elasticsearch-5-4-1-and-5-3-3-released","https://www.elastic.co/community/security"],"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":"2026-06-28T23:10:18.998431Z"},"effective_severity":null,"badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":null,"metrics":[]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"elastic","vendor_name":"Elastic","product_slug":"x-pack-security","product_name":"X-Pack Security","version_start":"5.0.0 to 5.4.0","version_start_inclusive":true,"version_end":"5.0.0 to 5.4.0","version_end_inclusive":true,"cpe23_uri":"cve5:elastic:x-pack-security:5.0.0 to 5.4.0:5.0.0 to 5.4.0"}],"exploit_refs":[],"news":[],"references":[{"url":"https://discuss.elastic.co/t/elastic-stack-5-4-1-and-5-3-3-security-updates/87952","source_type":"MISC","tags":[]},{"url":"https://www.elastic.co/blog/elasticsearch-5-4-1-and-5-3-3-released","source_type":"MISC","tags":[]},{"url":"https://www.elastic.co/community/security","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2017-06-05T14:00:00Z","label":"CVE published","source":null}]}