{"cve":{"cve_id":"CVE-2026-56275","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":null,"epss_percentile":null,"epss_as_of":null,"description":"Flowise before 3.1.0 contains a server-side request forgery vulnerability in the Execute Flow node that allows attackers to bypass security validation by providing intranet addresses through the base URL field. Attackers can initiate HTTP requests to internal network addresses, access cloud metadata, and enumerate internal services by exploiting the missing secureFetch verification in httpSecurity.ts.","published_at":"2026-06-23T12:13:01.376000Z","last_modified_at":null,"cvss_v3_score":null,"cvss_v3_vector":null,"cvss_v3_severity":null,"cvss_v4_score":6.0,"cvss_v4_vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","cvss_v4_severity":"MEDIUM","ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-918"],"nvd_references":["https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-9hrv-gvrv-6gf2","https://www.vulncheck.com/advisories/flowise-server-side-request-forgery-via-execute-flow-base-url"],"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":"2026-06-28T17:55:37.240342Z","updated_at":"2026-06-28T23:30:57.197036Z"},"effective_severity":"MEDIUM","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":"H","value_label":"High"},{"metric":"AT","name":"Attack Requirements","value":"N","value_label":"None"},{"metric":"PR","name":"Privileges Required","value":"L","value_label":"Low"},{"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":"L","value_label":"Low"},{"metric":"VA","name":"Availability (Vulnerable System)","value":"N","value_label":"None"},{"metric":"SC","name":"Confidentiality (Subsequent System)","value":"N","value_label":"None"},{"metric":"SI","name":"Integrity (Subsequent System)","value":"N","value_label":"None"},{"metric":"SA","name":"Availability (Subsequent System)","value":"N","value_label":"None"}]},"affected":[{"vendor_slug":"flowise","vendor_name":"Flowise","product_slug":"flowise","product_name":"Flowise","version_start":"0","version_start_inclusive":true,"version_end":"3.1.0","version_end_inclusive":false,"cpe23_uri":"cve5:flowise:flowise:0:3.1.0"},{"vendor_slug":"flowise","vendor_name":"Flowise","product_slug":"flowise","product_name":"Flowise","version_start":"3.1.0","version_start_inclusive":true,"version_end":"3.1.0","version_end_inclusive":true,"cpe23_uri":"cve5:flowise:flowise:3.1.0:3.1.0"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-9hrv-gvrv-6gf2","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://www.vulncheck.com/advisories/flowise-server-side-request-forgery-via-execute-flow-base-url","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2026-06-23T12:13:01.376000Z","label":"CVE published","source":null}]}