CVE-2026-19338

MEDIUM 5.3

automateyournetwork MCPyATS generate_mermaid_markdown index.ts processGenerateRequest path traversal

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-22
Vendor	automateyournetwork
Product	mcpyats
Published	Aug 9, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

automateyournetwork / MCPyATS

0.1.0 0.1.1 0.1.2 0.1.3 0.1.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/387174 vuldb.com: https://vuldb.com/vuln/387174/cti vuldb.com: https://vuldb.com/cve/CVE-2026-19338 vuldb.com: https://vuldb.com/submit/865262 github.com: https://github.com/automateyournetwork/MCPyATS/issues/22 github.com: https://github.com/automateyournetwork/MCPyATS/

Credits

🔍 gongyanyu04 (VulDB User)