Detections
Analytics

SCA: security update for n8n (GHSA-vpgc-2f6g-7w7x)

medium Tenable Self-Hosted Container Security Plugin ID 439213

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 version 2.8.0, when the
 `N8N_SKIP_AUTH_ON_OAUTH_CALLBACK` environment variable is set to `true`, the OAuth callback handler skips
 ownership verification of the OAuth state parameter. This allows an attacker to trick a victim into
 completing an OAuth flow against a credential object the attacker controls, causing the victim's OAuth
 tokens to be stored in the attacker's credential. The attacker can then use those tokens to execute
 workflows in their name. This issue only affects instances where `N8N_SKIP_AUTH_ON_OAUTH_CALLBACK=true` is
 explicitly configured (non-default). The issue has been fixed in n8n version 2.8.0. Users should upgrade
 to this version or later to remediate the vulnerability. If upgrading is not immediately possible,
 administrators should consider the following temporary mitigations: Avoid enabling
 `N8N_SKIP_AUTH_ON_OAUTH_CALLBACK=true` unless strictly required, and/ or restrict access to the n8n
 instance to fully trusted users only. These workarounds do not fully remediate the risk and should only be
 used as short-term mitigation measures. (CVE-2026-33720)

Solution

Update the n8n library and its related packages to version 2.8.0 or later.

See Also

https://github.com/advisories/GHSA-vpgc-2f6g-7w7x

Plugin Details

Severity: Medium

ID: 439213

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: 2.1

Percentile: 7.71

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS Score Source: CVE-2026-33720

CVSS v3

Risk Factor: Medium

Base Score: 4.2

Temporal Score: 3.7

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.3

Threat Score: 1.7

Threat Vector: CVSS:4.0/E:U

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

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-2026-33720

cwe: CWE-863