CVE-2026-19338automateyournetwork MCPyATS generate_mermaid_markdown index.ts processGenerateRequest path traversal
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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.
- CVSS
- 5.3 MEDIUM (v3.1, CNA)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
- Weakness (CWE)
- CWE-22
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- Aug 10, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
automateyournetwork MCPyATS automateyournetwork:mcpyats | 0.1.0; 0.1.1; 0.1.2; 0.1.3; 0.1.4 | CNA record |
References
- https://vuldb.com/vuln/387174vdb-entry, technical-description
- https://vuldb.com/vuln/387174/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-19338third-party-advisory
- https://vuldb.com/submit/865262third-party-advisory
- https://github.com/automateyournetwork/MCPyATS/issues/22issue-tracking
- https://github.com/automateyournetwork/MCPyATS/product
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.