[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-CVE-2026-56274":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-23T18:49:48.409Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":40,"aliases":41,"duplicate_of":9,"upstream":42,"downstream":43,"duplicates":44,"related":45,"reserved_at":9,"published_at":46,"modified_at":47,"state":48,"summary":49,"references_raw":56,"kevs":67,"epss":9,"epss_history":68,"metrics":69,"affected":79},"CVE-2026-56274","Flowise before 3.1.2 contains multiple OS command injection vulnerabilities in the Custom MCP Server feature due to incomplete command-flag validation and a regex bypass in local file access restrictions. An attacker with a Flowise account of any role, or API access with view/update permissions for chatflows, can configure a malicious MCP server to bypass the validateCommandFlags blocklist (for example, 'docker build' is not blocked, and 'npx --yes' is not blocked while only '-y' is) and the validateArgsForLocalFileAccess checks, resulting in execution of arbitrary commands on the Flowise host.",null,[11],{"_key":12,"id":12,"name":13,"description":14,"type":15,"status":16,"abstraction":17,"likelihood_of_exploit":18,"capec":19},"CWE-78","Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.","weakness","Stable","Base","High",[20,24,28,32,36],{"id":21,"name":22,"techniques":23},"CAPEC-108","Command Line Execution through SQL Injection",[],{"id":25,"name":26,"techniques":27},"CAPEC-15","Command Delimiters",[],{"id":29,"name":30,"techniques":31},"CAPEC-43","Exploiting Multiple Input Interpretation Layers",[],{"id":33,"name":34,"techniques":35},"CAPEC-6","Argument Injection",[],{"id":37,"name":38,"techniques":39},"CAPEC-88","OS Command Injection",[],[],[],[],[],[],[],"2026-06-23T12:13:00.703Z","2026-06-23T13:05:20.491Z","PUBLISHED",{"cisa_kev":50,"cisa_ransomware":50,"cisa_vendor":9,"epss_severity":9,"epss_score":9,"severity":51,"severity_score":52,"severity_version":53,"severity_source":54,"severity_vector":55,"severity_status":48},false,"critical",9.9,"v3.1","cve.org","CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",[57,62],{"url":58,"sources":59,"tags":60},"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-m99r-2hxc-cp3q",[54],[61],"Vendor Advisory",{"url":63,"sources":64,"tags":65},"https://www.vulncheck.com/advisories/flowise-remote-code-execution-via-mcp-security-bypass-in-validatecommandflags-and-validateargsforlocalfileaccess",[54],[66],"Third Party Advisory",[],[],[70],{"source":54,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":71,"cvss_v4_0":75},{"baseScore":52,"baseSeverity":72,"vectorString":55,"impactScore":73,"exploitabilityScore":74},"CRITICAL",10,7.9,{"baseScore":76,"baseSeverity":77,"vectorString":78,"impactScore":9,"exploitabilityScore":9},8.7,"HIGH","CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",[80],{"ecosystem":9,"name":81,"vendor":82,"product":82,"cpe_part":83,"purl_type":9,"purl_namespace":9,"purl_name":9,"source":9,"versions":84},"Flowise","flowise","a",[85],{"version":86,"is_range":87,"range_type":54,"version_start":9,"version_start_type":9,"version_end":88,"version_end_type":89,"fixed_in":9},"\u003C 3.1.2",true,"3.1.2","excluding"]