{"cve":{"cve_id":"CVE-2026-20240","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":0.00396,"epss_percentile":0.31323,"epss_as_of":"2026-06-23","description":"In Splunk Enterprise versions below 10.2.2, 10.0.5, 9.4.11, and 9.3.12, and Splunk Cloud Platform versions below 10.4.2603.1, 10.3.2512.9, 10.2.2510.11, 10.1.2507.21, 10.0.2503.13, and 9.3.2411.129, a low-privileged user that does not hold the ‘admin’ or ‘power’ Splunk roles could cause a Denial of Service by exploiting the `coldToFrozen.sh` script in the `splunk_archiver` app to rename critical Splunk directories, making the instance non-functional.<br><br>The Denial of Service is possible because of missing input validation in the `coldToFrozen.sh` script, which accepts arbitrary file paths and renames them without restricting operations to safe directories.","published_at":"2026-05-20T16:32:05.687000Z","last_modified_at":null,"cvss_v3_score":7.1,"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":"HIGH","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-20"],"nvd_references":["https://advisory.splunk.com/advisories/SVD-2026-0504"],"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":"2026-06-28T23:29:03.077147Z"},"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":"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":"splunk","vendor_name":"Splunk","product_slug":"splunk-cloud-platform","product_name":"Splunk Cloud Platform","version_start":"9.3.2411","version_start_inclusive":true,"version_end":"9.3.2411.129","version_end_inclusive":false,"cpe23_uri":"cve5:splunk:splunk-cloud-platform:9.3.2411:9.3.2411.129"},{"vendor_slug":"splunk","vendor_name":"Splunk","product_slug":"splunk-cloud-platform","product_name":"Splunk Cloud Platform","version_start":"10.3.2512","version_start_inclusive":true,"version_end":"10.3.2512.9","version_end_inclusive":false,"cpe23_uri":"cve5:splunk:splunk-cloud-platform:10.3.2512:10.3.2512.9"},{"vendor_slug":"splunk","vendor_name":"Splunk","product_slug":"splunk-cloud-platform","product_name":"Splunk Cloud Platform","version_start":"10.2.2510","version_start_inclusive":true,"version_end":"10.2.2510.11","version_end_inclusive":false,"cpe23_uri":"cve5:splunk:splunk-cloud-platform:10.2.2510:10.2.2510.11"},{"vendor_slug":"splunk","vendor_name":"Splunk","product_slug":"splunk-cloud-platform","product_name":"Splunk Cloud Platform","version_start":"10.1.2507","version_start_inclusive":true,"version_end":"10.1.2507.21","version_end_inclusive":false,"cpe23_uri":"cve5:splunk:splunk-cloud-platform:10.1.2507:10.1.2507.21"},{"vendor_slug":"splunk","vendor_name":"Splunk","product_slug":"splunk-cloud-platform","product_name":"Splunk Cloud Platform","version_start":"10.0.2503","version_start_inclusive":true,"version_end":"10.0.2503.13","version_end_inclusive":false,"cpe23_uri":"cve5:splunk:splunk-cloud-platform:10.0.2503:10.0.2503.13"},{"vendor_slug":"splunk","vendor_name":"Splunk","product_slug":"splunk-cloud-platform","product_name":"Splunk Cloud Platform","version_start":"10.4.2603","version_start_inclusive":true,"version_end":"10.4.2603.1","version_end_inclusive":false,"cpe23_uri":"cve5:splunk:splunk-cloud-platform:10.4.2603:10.4.2603.1"},{"vendor_slug":"splunk","vendor_name":"Splunk","product_slug":"splunk-enterprise","product_name":"Splunk Enterprise","version_start":"10.0","version_start_inclusive":true,"version_end":"10.0.5","version_end_inclusive":false,"cpe23_uri":"cve5:splunk:splunk-enterprise:10.0:10.0.5"},{"vendor_slug":"splunk","vendor_name":"Splunk","product_slug":"splunk-enterprise","product_name":"Splunk Enterprise","version_start":"9.4","version_start_inclusive":true,"version_end":"9.4.11","version_end_inclusive":false,"cpe23_uri":"cve5:splunk:splunk-enterprise:9.4:9.4.11"},{"vendor_slug":"splunk","vendor_name":"Splunk","product_slug":"splunk-enterprise","product_name":"Splunk Enterprise","version_start":"9.3","version_start_inclusive":true,"version_end":"9.3.12","version_end_inclusive":false,"cpe23_uri":"cve5:splunk:splunk-enterprise:9.3:9.3.12"},{"vendor_slug":"splunk","vendor_name":"Splunk","product_slug":"splunk-enterprise","product_name":"Splunk Enterprise","version_start":"10.2","version_start_inclusive":true,"version_end":"10.2.2","version_end_inclusive":false,"cpe23_uri":"cve5:splunk:splunk-enterprise:10.2:10.2.2"}],"exploit_refs":[],"news":[],"references":[{"url":"https://advisory.splunk.com/advisories/SVD-2026-0504","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2026-05-20T16:32:05.687000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:50:54.673227Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:50:54.673227Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:50:54.673227Z","label":"CVSS score revised","source":"cvelistv5"}]}