n8n: Public API Execution Retry Authorization Bypass
- Product
- n8n
- Affected
- n8n < 2.25.7 and 2.26.0 to 2.26.2
- Fixed in
- 2.25.7 and 2.26.2
Last verified against sources: October 26, 2026
Am I affected?
n8n: affected n8n < 2.25.7 and 2.26.0 to 2.26.2. Fixed in 2.25.7 and 2.26.2.
- Check your version: run
npm ls n8n. Versions >= 2.26.0, < 2.26.2 of n8n are affected. [1]
What to do now
- Upgrade to the fixed version: run
npm install n8n@2.26.2(first patched version 2.26.2). [1] - Upgrade to n8n 2.25.7 or 2.26.2, or later. [1]
- If upgrading is not immediately possible, restrict workflow sharing to fully trusted users only. [1]
- Restrict network access to the n8n Public API to trusted users only. [1]
General practice, not from the source: if the affected software could read tokens or credentials, rotate them after upgrading; pin versions and review changes before updating tools your agents run.
What happened
Impact
- An authenticated user with read-only access to a shared workflow could use the Public API to retry executions of that workflow, bypassing the intended permission boundary between read and execute access. [1]
What was done
Sources
- GHSA-h3jj-5f3v-3685 — GitHub Advisory Database
Every statement above was checked against these sources before publishing. Spotted an error? Tell us and we will correct it with a dated note.
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n8n: Public API Execution Retry Authorization Bypass
Product: n8n | Affected: n8n < 2.25.7 and 2.26.0 to 2.26.2 | Fixed in: 2.25.7 and 2.26.2
Summary: The Public API endpoint for retrying executions authorized access using `workflow:read` rather than `workflow:execute`.
Source & remediation on AgentArmorHQ: https://agentarmorhq.com/incidents/2026/06/ghsa-h3jj-5f3v-3685-n8nCorrections
Report an error or request a correction. We review requests within 5 business days and add a dated correction note.
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