CVE-2026-19338CWE-22path-traversal

CVE-2026-19338

Medium · published August 9, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
6.3
In the wild
Unconfirmed
What it is

A vulnerability was identified in automateyournetwork MCPyATS up to 0.1.4. The affected element is the function processGenerateRequest of the file mcp_servers/mermaid/index.ts of the component generate_mermaid_markdown. The manipulation of the argument folder/name leads to path traversal. The attack must be carried out locally.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00172 · 6.3th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-08-09T11:17Z
References (6)
https://github.com/automateyournetwork/MCPyATS/ · [email protected]https://github.com/automateyournetwork/MCPyATS/issues/22 · [email protected]https://vuldb.com/cve/CVE-2026-19338 · [email protected]https://vuldb.com/submit/865262 · [email protected]https://vuldb.com/vuln/387174 · [email protected]https://vuldb.com/vuln/387174/cti · [email protected]
EPSS history
Timeline
  • 09 AUG 06:15Z
    automateyournetwork MCPyATS generate_mermaid_markdown index.ts processGenerateRequest path traversal
    cvelistv5