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…
Exact source revision recorded 31 Oct 2026 18:05:00 UTC. It does not establish the source's current position. Latest evidence.
nvd · CVE-2026-65599
Publishedn8n 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.
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.
Source analysis status: Analyzed
Weakness classifications: CWE-312
Original publisher date fields
published: 2026-07-22T12:18:20.167
lastModified: 2026-10-29T20:17:33.243
4 source CPE criteria · context only
- 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:*:*
The original JSON retains the logical configuration operators, exclusions and version bounds.
- Source published
- 22 Jul 2026 12:18:20 UTC
- Source modified
- 29 Oct 2026 20:17:33 UTC
- Observed here
- 31 Oct 2026 18:05:00 UTC
- Source terms
- NIST NVD usage terms; underlying source attribution retained
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.
CVSS 4.0 · [email protected] · Secondary · 5.1 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
CVSS 3.1 · [email protected] · Primary · 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N