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.
Advisories
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-75qm-gp28-rcq9 | n8n: Prototype Pollution via Workflow Credentials Leads to Unauthenticated User and Project Enumeration |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Fri, 10 Jul 2026 09:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
N8n
N8n n8n |
|
| Vendors & Products |
N8n
N8n n8n |
Thu, 09 Jul 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Thu, 09 Jul 2026 15:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | n8n: Prototype Pollution via Workflow Credentials Leads to Unauthenticated User and Project Enumeration | |
| Weaknesses | CWE-1321 | |
| References |
| |
| Metrics |
cvssV4_0
|
Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-07-09T18:38:07.061Z
Reserved: 2026-07-02T21:05:02.924Z
Link: CVE-2026-59206
Updated: 2026-07-09T18:37:58.858Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-07-26T15:30:04Z
Weaknesses
Github GHSA