Vulnerability · Published Jul 13, 2026 · Assigned by VulDB

CVE-2026-15521makafeli n8n-workflow-builder update_node_from_file server.cjs path traversal

Medium 5.3

In plain English

A medium-severity path traversal in n8n-workflow-builder from makafeli. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.2%top 93.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was identified in makafeli n8n-workflow-builder up to 0.11.0. Affected is an unknown function of the file build/server.cjs of the component update_node_from_file. The manipulation of the argument filePath leads to path traversal. An attack has to be approached locally. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.

Affected products (as reported)

Vendor	Product	Versions
makafeli	n8n-workflow-builder	0.10.20.30.40.50.60.70.8

Weakness: CWE-22 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References

VDB-377850 | makafeli n8n-workflow-builder update_node_from_file server.cjs path traversal vdb-entry, technical-description
VDB-377850 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
CVE-2026-15521 | CVE Analysis and Report third-party-advisory
Submit #854522 | makafeli n8n-workflow-builder 0.11.0 Path Traversal third-party-advisory
https://github.com/makafeli/n8n-workflow-builder/issues/28 exploit, issue-tracking
https://github.com/makafeli/n8n-workflow-builder/ product