Detections
Analytics

SCA: security update for n8n (GHSA-c545-x2rh-82fc)

high Tenable Self-Hosted Container Security Plugin ID 439236

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 2.4.0 and 1.121.0, when LDAP
 authentication is enabled, n8n automatically linked an LDAP identity to an existing local account if the
 LDAP email attribute matched the local account's email. An authenticated LDAP user who could control their
 own LDAP email attribute could set it to match another user's email — including an administrator's — and
 upon login gain full access to that account. The account linkage persisted even if the LDAP email was
 later reverted, resulting in a permanent account takeover. LDAP authentication must be configured and
 active (non-default). The issue has been fixed in n8n versions 2.4.0 and 1.121.0. 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: Disable LDAP authentication until the
 instance can be upgraded, restrict LDAP directory permissions so that users cannot modify their own email
 attributes, and/or audit existing LDAP-linked accounts for unexpected account associations. These
 workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.
 (CVE-2026-33665)

Solution

Update the n8n library and its related packages to version 1.121.0 or later.

See Also

https://github.com/advisories/GHSA-c545-x2rh-82fc

Plugin Details

Severity: High

ID: 439236

Version: Revision 1.11

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: Medium

Score: 4.9

Percentile: 57.88

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-33665

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

CVSS v4

Risk Factor: High

Base Score: 8.8

Threat Score: 6

Threat Vector: CVSS:4.0/E:U

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

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-2026-33665

cwe: CWE-287