{"id":"CVE-2026-65599","aliases":[],"cve":{"records":[{"id":"CVE-2026-65599","source":"VulnCheck","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-07-22T10:48:36.000Z","published":"2026-07-22T11:21:46.100Z","modified":"2026-10-29T21:16:28.053Z"}],"publishers":[{"name":"VulnCheck","role":"CNA","organizationId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","modified":"2026-10-29T21:16:28.053Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-07-22T18:24:11.284Z"}],"references":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-9r8p-h6cc-6qhm","tags":["vendor-advisory"],"source":"VulnCheck"},{"url":"https://www.vulncheck.com/advisories/n8n-before-credential-exposure-via-jwt-header","tags":["third-party-advisory"],"source":"VulnCheck"}],"weaknesses":[{"id":"CWE-312","description":"Cleartext Storage of Sensitive Information","source":"VulnCheck"}],"applicability":[{"source":"VulnCheck","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*","versionEndExcluding":"1.123.64"},{"vulnerable":true,"criteria":"cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*","versionEndExcluding":"2.30.1","versionStartIncluding":"2.30.0"},{"vulnerable":true,"criteria":"cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*","versionEndExcluding":"2.29.8","versionStartIncluding":"2.0.0-rc.0"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-07-22T18:20:17.250346Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"partial"}]}]},"title":"n8n before 1.123.64, 2.29.8, and 2.30.1 Credential Exposure via JWT Header","titleSource":"VulnCheck","descriptionSource":"VulnCheck","description":"n8n versions before 1.123.64, 2.29.8, and 2.30.1 contain a credential exposure vulnerability: when configured with a Google Service Account key, the full PEM private key was mistakenly placed in the JWT header's kid field (intended only for a key identifier). Because JWT headers are Base64-encoded rather than encrypted, the private key could be recovered by anything that logged or inspected the JWT. An attacker who obtained the key could impersonate the service account and access or modify any Google Cloud resource it was authorized to use. Only instances using Google Service Account credentials are affected.","score":5.1,"severity":"medium","published":"2026-07-22T11:21:46.100Z","modified":"2026-10-29T21:16:28.053Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"n8n-io","name":"n8n","platforms":[],"versions":[{"version":"0","status":"affected","lessThan":"1.123.64","versionType":"semver"},{"version":"1.123.64","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:npm/n8n","packageIdentity":{"ecosystem":"npm","name":"n8n"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-65599"},{"vendor":"n8n-io","name":"n8n","platforms":[],"versions":[{"version":"2.30.0","status":"affected","lessThan":"2.30.1","versionType":"semver"},{"version":"2.30.1","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:npm/n8n","packageIdentity":{"ecosystem":"npm","name":"n8n"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-65599"},{"vendor":"n8n-io","name":"n8n","platforms":[],"versions":[{"version":"2.0.0-rc.0","status":"affected","lessThan":"2.29.8","versionType":"semver"},{"version":"2.29.8","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:npm/n8n","packageIdentity":{"ecosystem":"npm","name":"n8n"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-65599"}],"remediation":[],"references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-9r8p-h6cc-6qhm","https://www.vulncheck.com/advisories/n8n-before-credential-exposure-via-jwt-header"],"sources":[{"name":"CVE","id":"CVE-2026-65599","modified":"2026-10-29T21:16:28.053Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-65599"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:L","score":5.1}],"sourceAffected":[],"observedAt":"2026-10-29T21:58:07.259Z","kev":{"status":"not-listed","checkedAt":"2026-11-15T01:55:30.737Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-29T22:35:32.009Z","attemptedAt":"2026-10-29T22:35:32.009Z"},{"source":"GHSA","status":"available","checkedAt":"2026-10-29T22:35:31.892Z","attemptedAt":"2026-10-29T22:35:31.892Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-29T22:35:31.681Z","attemptedAt":"2026-10-29T22:35:31.681Z"},{"source":"EPSS","status":"available","checkedAt":"2026-10-29T22:35:31.554Z","attemptedAt":"2026-10-29T22:35:31.554Z"}],"evidence":[{"source":"FIRST EPSS","id":"CVE-2026-65599","url":"https://www.first.org/epss/","probability":0.00249,"percentile":0.16292,"date":"2026-10-29","checkedAt":"2026-10-29T22:35:31.554Z"},{"source":"ENISA EUVD","id":"EUVD-2026-47643","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-47643","modified":"Oct 29, 2026, 9:16:28 PM","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:L","checkedAt":"2026-10-29T22:35:31.681Z"},{"source":"GitHub Advisory Database","id":"GHSA-9r8p-h6cc-6qhm","url":"https://github.com/advisories/GHSA-9r8p-h6cc-6qhm","modified":"2026-07-22T18:00:11Z","checkedAt":"2026-10-29T22:35:31.892Z"},{"source":"NVD","id":"CVE-2026-65599","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-65599","modified":"2026-10-29T20:17:33.243","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","checkedAt":"2026-10-29T22:35:32.009Z"},{"source":"NVD","id":"CVE-2026-65599","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-65599","modified":"2026-10-29T20:17:33.243","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","checkedAt":"2026-10-29T22:35:32.009Z"}],"aiSummary":{"text":"n8n versions before 1.123.64, 2.29.8, and 2.30.1 have a credential exposure vulnerability when using Google Service Account credentials, allowing an attacker to recover the private key from the JWT header and access authorized Google Cloud resources. The private key is mistakenly placed in the JWT header's kid field. Only instances using Google Service Account credentials are affected.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T09:29:00.918Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-65599"}]}}