Vulnerability-Lookup

CVE-2026-19338 (GCVE-0-2026-19338)

Vulnerability from cvelistv5 – Published: 2026-08-09 06:15 – Updated: 2026-08-10 21:12

Title

automateyournetwork MCPyATS generate_mermaid_markdown index.ts processGenerateRequest path traversal

Summary

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.

Severity

4.8 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

5.3 (Medium)


                        
                          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

5.3 (Medium)


                        
                          CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-10 21:02 UTC

CWE

CWE-22 - Path Traversal

Assigner

VulDB mitre root

References

6 references

URL	Tags
https://vuldb.com/vuln/387174	vdb-entrytechnical-description
https://vuldb.com/vuln/387174/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-19338	third-party-advisory
https://vuldb.com/submit/865262	third-party-advisory
https://github.com/automateyournetwork/MCPyATS/is…	issue-tracking
https://github.com/automateyournetwork/MCPyATS/	product

Impacted products

1 product

Vendor	Product	Version	CPE status
automateyournetwork	MCPyATS	Affected: 0.1.0 Affected: 0.1.1 Affected: 0.1.2 Affected: 0.1.3 Affected: 0.1.4 cpe:2.3:a:automateyournetwork:mcpyats::::::::

Credits

gongyanyu04 (VulDB User)

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-19338

Vulnerability from fkie_nvd - Published: 2026-08-09 07:17 - Updated: 2026-08-12 20:59

Severity

5.3 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Summary

References

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

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "LOW",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-19338",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-10T21:02:19.630324Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-09T07:17:02.763",
  "references": [
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/automateyournetwork/MCPyATS/"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/automateyournetwork/MCPyATS/issues/22"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/cve/CVE-2026-19338"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/submit/865262"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/387174"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/387174/cti"
    }
  ],
  "sourceIdentifier": "cna@vuldb.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "cna@vuldb.com",
      "type": "Secondary"
    }
  ]
}

GHSA-Q9QJ-38CQ-3792

Vulnerability from github – Published: 2026-08-09 09:30 – Updated: 2026-08-09 09:30

Details

Severity

5.3 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

1.9 (Low)


                  
                    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-19338"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-09T07:17:02Z",
    "severity": "LOW"
  },
  "details": "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.",
  "id": "GHSA-q9qj-38cq-3792",
  "modified": "2026-08-09T09:30:24Z",
  "published": "2026-08-09T09:30:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19338"
    },
    {
      "type": "WEB",
      "url": "https://github.com/automateyournetwork/MCPyATS/issues/22"
    },
    {
      "type": "WEB",
      "url": "https://github.com/automateyournetwork/MCPyATS"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-19338"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/865262"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/387174"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/387174/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-19338 (GCVE-0-2026-19338)

FKIE_CVE-2026-19338

GHSA-Q9QJ-38CQ-3792

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Sightings

Nomenclature

Related by attack behaviour