Detections
Analytics

SCA: security update for n8n (GHSA-m63j-689w-3j35)

high Tenable Self-Hosted Container Security Plugin ID 439237

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - n8n is an open source workflow automation platform. Prior to versions 2.14.1, 2.13.3, and 1.123.27, an
 authenticated user with the `global:member` role could exploit chained authorization flaws in n8n's
 credential pipeline to steal plaintext secrets from generic HTTP credentials (`httpBasicAuth`,
 `httpHeaderAuth`, `httpQueryAuth`) belonging to other users on the same instance. The attack abuses a
 name-based credential resolution path that does not enforce ownership or project scope, combined with a
 bypass in the credentials permission checker that causes generic HTTP credential types to be skipped
 during pre-execution validation. Together, these flaws allow a member-role user to resolve another user's
 credential ID and execute a workflow that decrypts and uses that credential without authorization. Native
 integration credential types (e.g. `slackApi`, `openAiApi`, `postgres`) are not affected by this issue.
 This vulnerability affects Community Edition only. Enterprise Edition has additional permission gates on
 workflow creation and execution that independently block this attack chain. The issue has been fixed in
 n8n versions 1.123.27, 2.13.3, and 2.14.1. Users should upgrade to one of these versions or later to
 remediate the vulnerability. If upgrading is not immediately possible, administrators should consider the
 following temporary mitigations: Restrict instance access to fully trusted users only, and/or audit
 credentials stored on the instance and rotate any generic HTTP credentials (`httpBasicAuth`,
 `httpHeaderAuth`, `httpQueryAuth`) that may have been exposed. These workarounds do not fully remediate
 the risk and should only be used as short-term mitigation measures. (CVE-2026-33663)

Solution

Update the n8n library and its related packages to version 1.123.27 or later.

See Also

https://github.com/advisories/GHSA-m63j-689w-3j35

Plugin Details

Severity: High

ID: 439237

Version: Revision 1.9

Type: Local

Family: SCA Checks

Published: 3/26/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:N/A:N

CVSS Score Source: CVE-2026-33663

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.5

Threat Score: 5.8

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 3/25/2026

Vulnerability Publication Date: 3/25/2026

Reference Information

CVE: CVE-2026-33663

cwe: CWE-639