{"cve":{"cve_id":"CVE-2021-39939","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":0.00907,"epss_percentile":0.5521,"epss_as_of":"2026-06-23","description":"An uncontrolled resource consumption vulnerability in GitLab Runner affecting all versions starting from 13.7 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allows an attacker triggering a job with a specially crafted docker image to exhaust resources on runner manager","published_at":"2021-12-13T15:48:02Z","last_modified_at":null,"cvss_v3_score":6.5,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvss_v3_severity":"MEDIUM","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":null,"nvd_references":["https://gitlab.com/gitlab-org/gitlab-runner/-/issues/28630","https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39939.json"],"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":"2026-06-28T23:16:07.134480Z"},"effective_severity":"MEDIUM","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":"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":"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":"gitlab","vendor_name":"gitlab","product_slug":"gitlab-runner","product_name":"GitLab Runner","version_start":">=13.7, <14.3.6","version_start_inclusive":true,"version_end":">=13.7, <14.3.6","version_end_inclusive":true,"cpe23_uri":"cve5:gitlab:gitlab-runner:>=13.7, <14.3.6:>=13.7, <14.3.6"},{"vendor_slug":"gitlab","vendor_name":"gitlab","product_slug":"gitlab-runner","product_name":"GitLab Runner","version_start":">=14.4, <14.4.4","version_start_inclusive":true,"version_end":">=14.4, <14.4.4","version_end_inclusive":true,"cpe23_uri":"cve5:gitlab:gitlab-runner:>=14.4, <14.4.4:>=14.4, <14.4.4"},{"vendor_slug":"gitlab","vendor_name":"gitlab","product_slug":"gitlab-runner","product_name":"GitLab Runner","version_start":">=14.5, <14.5.2","version_start_inclusive":true,"version_end":">=14.5, <14.5.2","version_end_inclusive":true,"cpe23_uri":"cve5:gitlab:gitlab-runner:>=14.5, <14.5.2:>=14.5, <14.5.2"}],"exploit_refs":[],"news":[],"references":[{"url":"https://gitlab.com/gitlab-org/gitlab-runner/-/issues/28630","source_type":"MISC","tags":[]},{"url":"https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39939.json","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2021-12-13T15:48:02Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:19:17.801092Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:19:17.801092Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:19:17.801092Z","label":"CVSS score revised","source":"cvelistv5"}]}