PT-2026-40934 · N8N · N8N

Published 2026-05-14 · Updated 2026-05-20 · CVE-2026-44790

Positive Technologies (AI Summary)

CVSS v4.0

9.4

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions n8n versions prior to 1.123.43 n8n versions prior to 2.20.7 n8n versions prior to 2.22.1

Description An authenticated user with permissions to create or modify workflows can inject CLI flags during the Push operation of the Git node. This allows the attacker to read arbitrary files from the server, which can lead to a full system compromise and server-level remote code execution (RCE) by breaking sandboxes.

Recommendations Update to version 1.123.43 or later. Update to version 2.20.7 or later. Update to version 2.22.1 or later. Limit workflow creation and editing permissions to fully trusted users only. Disable the Git node by adding n8n-nodes-base.git to the NODES EXCLUDE environment variable.

Fix

Argument Injection

Weakness Enumeration

CWE-88

Related Identifiers

CVE-2026-44790

GHSA-57G9-58C2-XJG3

Affected Products

N8N

References · 10

• https://osv.dev/vulnerability/GHSA-57g9-58c2-xjg3 · Vendor Advisory
• https://github.com/n8n-io/n8n/security/advisories/GHSA-57g9-58c2-xjg3 · Note
• https://github.com/n8n-io/n8n · Note
• https://twitter.com/Netlas_io/status/2057031576375226702 · Twitter Post
• https://twitter.com/lyrie_ai/status/2056869858831110324 · Twitter Post
• https://twitter.com/UpwindMDR/status/2054876407382036673 · Twitter Post
• https://reddit.com/r/pwnhub/comments/1tgnuvb/critical_security_flaws_found_in_ivanti_fortinet · Reddit Post
• https://twitter.com/the_yellow_fall/status/2056188017719619831 · Twitter Post
• https://twitter.com/lyrie_ai/status/2056869858134962326 · Twitter Post
• https://t.me/netlas/570 · Telegram Post