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GHSA-hp3c-vfpm-q4f7

HIGH

GHSA-hp3c-vfpm-q4f7 is a high-severity (CVSS 8.2) SQL Injection vulnerability in n8n. O3 Security confirms whether GHSA-hp3c-vfpm-q4f7 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

n8n has SQL Injection in Snowflake and MySQL Nodes

Also known asCVE-2026-42237
Published
Apr 29, 2026
Updated
May 8, 2026
Affected
3 pkgs
Patched
3 / 3
Exploits
None indexed

Real-World Exposure

3 pkgs affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, a proxy for how much of the ecosystem is exposed.

n8nnpm
113Kdownloads / week

Description

Impact

The fix for GHSA-f3f2-mcxc-pwjx did not cover the Snowflake node or the legacy MySQL v1 node. Both nodes construct SQL queries by directly interpolating user-controlled table names, column names, and update keys into query strings without identifier escaping, enabling SQL injection against the connected database.

Exploitation requires a specific workflow configuration:

  • The Snowflake or MySQL v1 node must be used with user-controlled input passed via expressions (e.g., from a form or webhook) into identifier fields such as table name, column name, or update key.

Successful exploitation could allow data exfiltration, modification, or deletion on the downstream database.

Patches

The issue has been fixed in n8n versions 1.123.32, 2.17.4, and 2.18.1. Users should upgrade to one of these versions or later to remediate the vulnerability.

Workarounds

If upgrading is not immediately possible, administrators should consider the following temporary mitigations:

  • Limit workflow creation and editing permissions to fully trusted users only.
  • Migrate workflows from the legacy MySQL v1 node to the MySQL v2 node, which already implements identifier escaping.
  • Disable the Snowflake node by adding n8n-nodes-base.snowflake to the NODES_EXCLUDE environment variable.
  • Avoid passing unvalidated external user input into table name, column name, or update key fields via expressions in the affected nodes.

These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

Affected Packages

3 total 3 fixed
EcosystemPackageVulnerable rangeFix
📦npmn8nall versions1.123.32
📦npmn8n2.18.0&&< 2.18.12.18.1
📦npmn8n2.0.0&&< 2.17.42.17.4

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for n8n. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update n8n to 1.123.32 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-hp3c-vfpm-q4f7 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-hp3c-vfpm-q4f7 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-hp3c-vfpm-q4f7. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

## Impact The fix for [GHSA-f3f2-mcxc-pwjx](https://github.com/advisories/GHSA-f3f2-mcxc-pwjx) did not cover the Snowflake node or the legacy MySQL v1 node. Both nodes construct SQL queries by directly interpolating user-controlled table names, column names, and update keys into query strings without identifier escaping, enabling SQL injection against the connected database. Exploitation requires a specific workflow configuration: - The Snowflake or MySQL v1 node must be used with user-controlled input passed via expressions (e.g., from a form or webhook) into identifier fields such as table
O3 Security · Impact-Aware SCA

Is GHSA-hp3c-vfpm-q4f7 in your dependencies?

O3 detects GHSA-hp3c-vfpm-q4f7 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.