Detections
Analytics

SCA: security update for n8n (GHSA-mqpr-49jj-32rc)

medium Tenable Cloud Security Plugin ID 438124

Description

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

 - n8n before 1.123.15 and 2.5.0 contains a webhook forgery vulnerability in the GitHub Webhook Trigger node
 that fails to implement HMAC-SHA256 signature verification. Attackers who know the webhook URL can send
 unsigned POST requests to trigger workflows with arbitrary data, spoofing GitHub webhook events.
 (CVE-2026-56357)

Solution

Update the n8n library and its related packages to version 1.123.15 or later.

See Also

https://github.com/advisories/GHSA-mqpr-49jj-32rc

Plugin Details

Severity: Medium

ID: 438124

Version: Revision 1.8

Type: Local

Family: SCA Checks

Published: 3/3/2026

Updated: 7/18/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-56357

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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:N/VI:L/VA:N/SC:N/SI:L/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 2/26/2026

Vulnerability Publication Date: 2/26/2026

Reference Information

CVE: CVE-2026-56357

cwe: CWE-290