{"id":"CVE-2026-56349","state":"PUBLISHED","title":"n8n - Guardrail Node Bypass via Crafted Input","description":"n8n before version 2.10.0 contains an input validation vulnerability in the Guardrail node that allows attackers to bypass default guardrail instructions. End users can craft malicious inputs to circumvent guardrail protections and compromise workflow integrity.","publishedAt":"2026-07-15T11:25:27.992Z","updatedAt":"2026-07-15T12:42:58.824Z","severity":{"score":6.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["n8n n8n"],"affected":[{"vendor":"n8n","product":"n8n","packageURL":"pkg:npm/n8n","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2.10.0","versionType":"semver"},{"version":"2.10.0","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-fvfv-ppw4-7h2w","https://www.vulncheck.com/advisories/n8n-guardrail-node-bypass-via-crafted-input"],"weaknesses":["CWE-20"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/56xxx/CVE-2026-56349.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-56349","state":"PUBLISHED","datePublished":"2026-07-15T11:25:27.992Z","dateUpdated":"2026-07-15T12:42:58.824Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-06-20T18:13:07.363Z"},"containers":{"cna":{"title":"n8n - Guardrail Node Bypass via Crafted Input","descriptions":[{"lang":"en","value":"n8n before version 2.10.0 contains an input validation vulnerability in the Guardrail node that allows attackers to bypass default guardrail instructions. End users can craft malicious inputs to circumvent guardrail protections and compromise workflow integrity."}],"affected":[{"vendor":"n8n","product":"n8n","packageURL":"pkg:npm/n8n","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2.10.0","versionType":"semver"},{"version":"2.10.0","status":"unaffected","versionType":"semver"}]}],"references":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-fvfv-ppw4-7h2w","name":"GitHub Security Advisory (GHSA-fvfv-ppw4-7h2w)","tags":["vendor-advisory"]},{"url":"https://www.vulncheck.com/advisories/n8n-guardrail-node-bypass-via-crafted-input","name":"VulnCheck Advisory: n8n - Guardrail Node Bypass via Crafted Input","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.3,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","lang":"en","description":"Improper Input Validation","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-07-15T11:25:27.992Z"},"datePublic":"2026-02-25T00:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*","versionEndExcluding":"2.10.0"}]}]}],"credits":[{"lang":"en","value":"akirilov","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-15T12:42:50.947851Z","id":"CVE-2026-56349","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-15T12:42:58.824Z"}}]}}}