GHSA-hwmj-qg4v-cvg9

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Source
https://github.com/advisories/GHSA-hwmj-qg4v-cvg9
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-hwmj-qg4v-cvg9/GHSA-hwmj-qg4v-cvg9.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-hwmj-qg4v-cvg9
Aliases
Published
2026-07-22T22:22:22Z
Modified
2026-07-22T22:31:06Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N CVSS Calculator
Summary
n8n: MySQL v1 Node executeQuery Operation Allows SQL Injection via Unparameterized Expression Interpolation
Details

Impact

The legacy MySQL v1 node's executeQuery operation substitutes evaluated {{ ... }} expression values directly into the raw SQL string without parameterization. If a workflow uses this operation with expression-sourced values in the query and is connected to an externally-reachable trigger (such as a Webhook node), attacker-controlled input reaching those expressions results in SQL injection.

Successful exploitation allows arbitrary SQL execution with the configured MySQL credentials' privileges, enabling unauthorized disclosure, modification, or deletion of data in the downstream database. MySQL v2 node is not affected.

This issue can affect only instances running workflows that use the MySQL v1 node with executeQuery operations.

Patches

The issue has been fixed in n8n versions 1.123.61, 2.27.4, and 2.28.1. 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:

  • Disable the MySQL node by adding n8n-nodes-base.mySql to the NODES_EXCLUDE environment variable, or audit and restrict access to workflows using the MySQL v1 node with the executeQuery operation.
  • Ensure that webhook endpoints used in workflows containing MySQL v1 executeQuery nodes with expression interpolation require authentication.
  • Migrate affected workflows to use the MySQL v2 node, which uses parameterized queries.

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

Database specific 
{
    "cwe_ids":  [
        "CWE-89"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-07-22T22:22:22Z",
    "nvd_published_at":  null,
    "severity":  "MODERATE"
}
References

Affected packages

npm / n8n

Package

Name
n8n
View open source insights on deps.dev
Purl
pkg:npm/n8n

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.123.61

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-hwmj-qg4v-cvg9/GHSA-hwmj-qg4v-cvg9.json"

npm / n8n

Package

Name
n8n
View open source insights on deps.dev
Purl
pkg:npm/n8n

Affected ranges

Type
SEMVER
Events
Introduced
2.28.0
Fixed
2.28.1

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-hwmj-qg4v-cvg9/GHSA-hwmj-qg4v-cvg9.json"

npm / n8n

Package

Name
n8n
View open source insights on deps.dev
Purl
pkg:npm/n8n

Affected ranges

Type
SEMVER
Events
Introduced
2.0.0-rc.0
Fixed
2.27.4

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-hwmj-qg4v-cvg9/GHSA-hwmj-qg4v-cvg9.json"