GHSA-756q-gq9h-fp22

Source

https://github.com/advisories/GHSA-756q-gq9h-fp22

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-756q-gq9h-fp22/GHSA-756q-gq9h-fp22.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-756q-gq9h-fp22

Aliases

CVE-2026-42227

Published

2026-04-29T21:21:00Z

Modified

2026-05-08T01:49:48.683023Z

Severity

7.7 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
6.0 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

n8n has Public API Variables IDOR that Allows Cross-Project Secret Disclosure

Details

Impact

An authenticated user with a valid API key scoped to variable:list could read variables from projects they are not a member of by supplying an arbitrary projectId query parameter to the public API variables endpoint. The handler queried the variables repository directly without enforcing project membership checks, bypassing the authorization-aware service layer used by the internal enterprise controller.

If variables were misused to store sensitive information such as credentials or tokens, they should be rotated immediately.

This issue only affects licensed enterprise or team deployments with multiple projects and the variables feature enabled.

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:

Restrict n8n access and API key issuance to fully trusted users only.
Audit existing project variables for sensitive values and rotate any secrets that may have been exposed.

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

Database specific

{
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-29T21:21:00Z",
    "cwe_ids": [
        "CWE-639"
    ],
    "severity": "MODERATE",
    "nvd_published_at": "2026-05-04T19:16:04Z"
}

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

0Unknown introduced version / All previous versions are affected

Fixed

1.123.32

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-756q-gq9h-fp22/GHSA-756q-gq9h-fp22.json"

npm / n8n

Package

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

Affected ranges

Type: SEMVER
Events: Introduced

2.18.0

Fixed

2.18.1

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-756q-gq9h-fp22/GHSA-756q-gq9h-fp22.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

Fixed

2.17.4

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-756q-gq9h-fp22/GHSA-756q-gq9h-fp22.json"