{"id":"CVE-2026-65599","revision":null,"records":[{"revision":"69c1f7dbd668405f8291598edb1c89b0","observedAt":"2026-10-29T22:48:55.035+00:00","statement":{"source":"cve-program","id":"CVE-2026-65599","aliases":[],"title":"n8n before 1.123.64, 2.29.8, and 2.30.1 Credential Exposure via JWT Header","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.","state":0,"publishedAt":"2026-07-22T11:21:46.1+00:00","modifiedAt":"2026-10-29T21:16:28.053+00:00","affected":[{"ecosystem":"Vendor product","name":"n8n","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"n8n-io\",\n                    \"product\": \"n8n\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:npm/n8n\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"1.123.64\"\n                        },\n                        {\n                            \"version\": \"1.123.64\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"n8n","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"n8n-io\",\n                    \"product\": \"n8n\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:npm/n8n\",\n                    \"versions\": [\n                        {\n                            \"version\": \"2.30.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"2.30.1\"\n                        },\n                        {\n                            \"version\": \"2.30.1\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"n8n","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"n8n-io\",\n                    \"product\": \"n8n\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:npm/n8n\",\n                    \"versions\": [\n                        {\n                            \"version\": \"2.0.0-rc.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"2.29.8\"\n                        },\n                        {\n                            \"version\": \"2.29.8\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","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,"severity":"MEDIUM"}],"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"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-65599","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-65599","identifiers":["CVE-2026-65599"]},"retained":false,"historicalAffected":[]},{"revision":"95f43255b8c442d0bd7af47ca34ed9c9","observedAt":"2026-11-05T12:49:15.067+00:00","statement":{"source":"euvd","id":"EUVD-2026-47643","aliases":["CVE-2026-65599","GHSA-mhvh-gwhr-76pw","GHSA-9r8p-h6cc-6qhm"],"title":"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…","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.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","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,"severity":null}],"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"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-47643","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Jul 22, 2026, 11:21:46 AM","dateUpdated":"Oct 29, 2026, 9:16:28 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-47643","identifiers":["EUVD-2026-47643","CVE-2026-65599","GHSA-mhvh-gwhr-76pw","GHSA-9r8p-h6cc-6qhm"]},"retained":false,"historicalAffected":[]},{"revision":"9904490a35f941599895f0d26ef12d40","observedAt":"2026-10-31T18:05:00.018+00:00","statement":{"source":"nvd","id":"CVE-2026-65599","aliases":[],"title":"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…","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.","state":0,"publishedAt":"2026-07-22T12:18:20.167+00:00","modifiedAt":"2026-10-29T20:17:33.243+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · disclosure@vulncheck.com · Secondary","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","score":5.1,"severity":"MEDIUM"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","score":6.5,"severity":"MEDIUM"}],"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"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-65599","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-312"],"productCriteria":["cpe:2.3:a:n8n:n8n:*:*:*:*:community:node.js:*:*","cpe:2.3:a:n8n:n8n:*:*:*:*:enterprise:node.js:*:*","cpe:2.3:a:n8n:n8n:2.30.0:*:*:*:community:node.js:*:*","cpe:2.3:a:n8n:n8n:2.30.0:*:*:*:enterprise:node.js:*:*"],"sourceDates":{"published":"2026-07-22T12:18:20.167","lastModified":"2026-10-29T20:17:33.243"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-65599","identifiers":["CVE-2026-65599"]},"retained":false,"historicalAffected":[]},{"revision":"ea9e6837b7184e95a7065343d2545b7b","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-9r8p-h6cc-6qhm","aliases":["CVE-2026-65599"],"title":"n8n: Google Service Account Private Key Exposed in JWT Header","description":"## Impact\nWhen n8n was configured with a Google Service Account key, the full PEM private key was mistakenly placed in the JWT header's `kid` field (which should only have held a key identifier). Since JWT headers were Base64-encoded rather than encrypted, the key could be recovered by anything that logged or inspected the JWT.\n\nAn attacker who obtained the key could impersonate the service account and access or modify any Google Cloud resource it was authorized to use.\n\nOnly instances using Google Service Account credentials are affected.\n\n## Patches\nThe issue has been fixed in n8n versions 1.123.64, 2.29.8, and 2.30.1. Users should upgrade to one of these versions or later to remediate the vulnerability.\n\n## Workarounds\nIf upgrading is not immediately possible, administrators should consider the following temporary mitigations:\n- Avoid using Google Service Account credentials until the instance is patched.\n- Rotate any Google Service Account keys that may have been used with an affected n8n version.\n- Review proxy, load balancer, and application logs for JWT headers that may contain exposed key material and treat any such keys as compromised.\n\nThese workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.","state":0,"publishedAt":"2026-07-22T18:00:09+00:00","modifiedAt":"2026-07-22T19:03:13.735574+00:00","affected":[{"ecosystem":"npm","name":"n8n","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.123.64"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"n8n","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"2.30.0"},{"kind":"fixed","version":"2.30.1"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"n8n","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"2.0.0-rc.0"},{"kind":"fixed","version":"2.29.8"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V4","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":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-9r8p-h6cc-6qhm","https://nvd.nist.gov/vuln/detail/CVE-2026-65599","https://github.com/n8n-io/n8n","https://github.com/n8n-io/n8n/releases/tag/n8n@1.123.64","https://github.com/n8n-io/n8n/releases/tag/n8n@2.29.8","https://github.com/n8n-io/n8n/releases/tag/n8n@2.30.1","https://www.vulncheck.com/advisories/n8n-before-credential-exposure-via-jwt-header"],"sourceUrl":"https://github.com/advisories/GHSA-9r8p-h6cc-6qhm","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-9r8p-h6cc-6qhm","identifiers":["GHSA-9r8p-h6cc-6qhm","CVE-2026-65599"]},"retained":false,"historicalAffected":[]},{"revision":"17a484a136d74c938bbdc2786422c53a","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-mhvh-gwhr-76pw","aliases":[],"title":"Duplicate Advisory: Google Service Account Private Key Exposed in JWT Header","description":"## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of\u00A0GHSA-9r8p-h6cc-6qhm. This link is maintained to preserve external references.\n\n## Original Description\nn8n 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.","state":2,"publishedAt":"2026-07-22T12:32:18+00:00","modifiedAt":"2026-07-22T18:16:06.9820659+00:00","affected":[{"ecosystem":"npm","name":"n8n","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V4","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","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-9r8p-h6cc-6qhm","https://nvd.nist.gov/vuln/detail/CVE-2026-65599","https://www.vulncheck.com/advisories/n8n-before-credential-exposure-via-jwt-header"],"sourceUrl":"https://github.com/advisories/GHSA-mhvh-gwhr-76pw","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-mhvh-gwhr-76pw","identifiers":["GHSA-mhvh-gwhr-76pw"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-07T00:28:52.9665809+00:00","complete":true,"records":1769,"lastAttemptAt":"2026-11-07T00:28:52.9665809+00:00","lastSuccessAt":"2026-11-07T00:28:53.1625113+00:00","error":null,"lastVerifiedAt":"2026-11-07T00:28:53.1625124+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-e3f76855f3f449c8c0427e4ebd06d00838fa519af10fe158fc0ca4a62af0718a-340a45d9017d4f9de046b855ad9d1afbc5c699f0e6a7003981ff3a54ebedd5b3","complete":true,"records":420470,"lastAttemptAt":"2026-11-07T00:26:54.2874398+00:00","lastSuccessAt":"2026-11-06T23:27:15.9170833+00:00","error":null,"lastVerifiedAt":"2026-11-07T00:26:54.2874398+00:00","snapshotPublishedAt":"2026-11-06T23:24:11+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-0989d2d9e73b48f9a9dc056a6529feff","complete":false,"records":13623,"lastAttemptAt":"2026-11-07T00:41:03.8092186+00:00","lastSuccessAt":"2026-11-07T00:41:03.805+00:00","error":"2 identifier lookups failed; latest failures include HTTP 403. Other identifiers were checked independently.","lastVerifiedAt":"2026-11-07T00:41:03.805+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13683,"expectedIdentifiers":13685,"failedIdentifiers":2},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-07T00:28:52.9665809+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-07T00:28:52.9665809+00:00","lastSuccessAt":"2026-11-07T00:28:53.1671535+00:00","error":null,"lastVerifiedAt":"2026-11-07T00:28:53.1671542+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-ee8b62a9eb28499a935e299b0f02e625","complete":true,"records":13645,"lastAttemptAt":"2026-11-07T00:28:54.4169099+00:00","lastSuccessAt":"2026-11-07T00:28:54.367+00:00","error":null,"lastVerifiedAt":"2026-11-07T00:28:54.367+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13685,"expectedIdentifiers":13685,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-0eb4d6dde62dffacd040ad992d4fd5a65cd7d0dc5f5f4cfa8b41967fc6f9ca5f","complete":true,"records":9914,"lastAttemptAt":"2026-11-07T00:28:52.8647003+00:00","lastSuccessAt":"2026-11-06T20:10:36.6450506+00:00","error":null,"lastVerifiedAt":"2026-11-07T00:28:52.8647003+00:00","snapshotPublishedAt":"2026-11-06T20:02:57+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-fde804134ecdda0ddd5ff5c26ee1fff5a6fa659311f7ef2e51c6ad54964db0e2","complete":true,"records":1971,"lastAttemptAt":"2026-11-07T00:26:54.4388137+00:00","lastSuccessAt":"2026-11-06T19:03:17.0399903+00:00","error":null,"lastVerifiedAt":"2026-11-07T00:26:54.4388137+00:00","snapshotPublishedAt":"2026-11-06T18:17:57+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-335633e78a15c9cde10a6025895b5617717087fb945489ae7e15d377bacf34a9","complete":true,"records":3055,"lastAttemptAt":"2026-11-07T00:28:52.8787864+00:00","lastSuccessAt":"2026-11-06T16:03:00.7615789+00:00","error":null,"lastVerifiedAt":"2026-11-07T00:28:52.8787864+00:00","snapshotPublishedAt":"2026-11-06T16:02:48+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-a0b728bc1c5526b5429930c00621636eba8655069c176697c3080f8377619ad7","complete":true,"records":231291,"lastAttemptAt":"2026-11-07T00:28:52.7371776+00:00","lastSuccessAt":"2026-11-07T00:28:51.1983528+00:00","error":null,"lastVerifiedAt":"2026-11-07T00:28:52.7371776+00:00","snapshotPublishedAt":"2026-11-06T23:33:08+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}