# n8n: Account Takeover via Unverified Email Claim in Token Exchange Embed Login

Advisory record · `GHSA-8342-988q-86cr`

- **Identifiers:** `GHSA-8342-988q-86cr` · `CVE-2026-72772`
- **State:** Confirmed
- **Severity:** CVSS 8.9 High
- **Critical:** No
- **Weakness (CWE):** [CWE-345](https://cwe.mitre.org/data/definitions/345.html) · [CWE-640](https://cwe.mitre.org/data/definitions/640.html) · [CWE-863](https://cwe.mitre.org/data/definitions/863.html)
- **Tags:** [Broken access control](https://agentprime.io/advisories/tag/access-control.md) · [CWE-345](https://agentprime.io/advisories/tag/cwe-345.md) · [CWE-640](https://agentprime.io/advisories/tag/cwe-640.md)
- **Published:** 22 Jul 2026
- **Updated:** 12 Aug 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 22 Jul 2026, 22:04 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `n8n` (npm): affected `>=2.32.0, <2.32.1 || <2.31.5`; fixed in `2.32.1`, `2.31.5`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 8.9 High, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L`, from CNA (VulnCheck)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0045, the 39th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the GitHub Advisory Database, published 22 Jul 2026. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-8342-988q-86cr](https://github.com/advisories/GHSA-8342-988q-86cr)
- [OSV: GHSA-8342-988q-86cr](https://osv.dev/vulnerability/GHSA-8342-988q-86cr)
- <https://github.com/n8n-io/n8n/security/advisories/GHSA-8342-988q-86cr>
- <https://github.com/n8n-io/n8n/commit/f69dfc6dd2178a14ea1624d2e1d403c2e755042f>
- <https://github.com/n8n-io/n8n>
- <https://github.com/n8n-io/n8n/releases/tag/n8n@2.31.5>
- <https://github.com/n8n-io/n8n/releases/tag/n8n@2.32.1>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-8342-988q-86cr>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-8342-988q-86cr/>. Everything for agents: <https://agentprime.io/llms.txt>.