n8n before 2.25.7 and 2.26.x before 2.26.2 contains an authorization bypass in the Public API execution retry endpoint, which authorizes access using the workflow:read scope instead of workflow:execute. An authenticated user with read-only access to a shared workflow can use the Public API to retry executions of that workflow, bypassing the intended permission boundary between read and execute access. This affects instances where workflows are shared with other users or across projects.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://github.com/n8n-io/n8n/security/advisories/GHSA-h3jj-5f3v-3685 Mitigation, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 5.3 · n8nNVD modified 2026-10-25 20:10
Affected (CPE criteria) 1
cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*
References 2
- https://github.com/n8n-io/n8n/security/advisories/GHSA-h3jj-5f3v-3685 Mitigation, Vendor Advisory
- https://www.vulncheck.com/advisories/n8n-authorization-bypass-in-public-api-execution-retry-endpoint Third Party Advisory