VDB
CVE-2026-59206
CVE-2026-59206
PUBLISHED
CVSS 7.1 HIGH
Reported by GitHub_M · Published July 9, 2026
n8n is an open source workflow automation platform. Prior to 1.123.61, 2.27.4, and, 2.28.1, an authenticated user with the default workflow:create permission could pollute Object.prototype through a crafted workflow saved, updated, or imported via the workflow API, allowing unauthenticated requests to be treated as a privileged user and exposing user and project listing endpoints. This issue is fixed in versions 1.123.61, 2.27.4, and 2.28.1.
Risk Scores
CVSS 4.0
7.1
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:L/SI:L/SA:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| n8n-io | n8n | >= 2.28.0, < 2.28.1, >= 2.0.0-rc.0, < 2.27.4, < 1.123.61 |
| n8n-io | n8n | >= 2.28.0, < 2.28.1, >= 2.0.0-rc.0, < 2.27.4, < 1.123.61 |
Timeline
- Jul 9, 2026 CVE Published
- Jul 9, 2026 CVE Updated
- Jul 10, 2026 Coalition ESS Score
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-75qm-gp28-rcq9 x_refsource_CONFIRM
- https://github.com/n8n-io/n8n/releases/tag/n8n%402.27.4 x_refsource_MISC
- https://github.com/n8n-io/n8n/releases/tag/n8n%402.28.1 x_refsource_MISC