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GHSA-26QX-2C8W-XJFX

Vulnerability from github – Published: 2026-08-06 15:32 – Updated: 2026-08-06 15:32

Details

A vulnerability was detected in Kino-Kafkaesque ssh-mcp-server up to 8ebbbb99b26f80ff6162fe00957c6dec73fbc5a5. Impacted is the function ssh_exec of the file src/index.ts of the component SSH Command Handler. Performing a manipulation of the argument host/username results in command injection. The attack requires a local approach. The actual existence of this vulnerability is currently in question. This product adopts a rolling release strategy to maintain continuous delivery. Therefore, version details for affected or updated releases cannot be specified. The project maintainer explains: "The intended threat model is that this MCP server is a local/trusted tool for an agent to execute commands over SSH, so callers already have meaningful execution capability through the exposed shell."

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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-19039"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-74"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-06T13:17:27Z",
    "severity": "LOW"
  },
  "details": "A vulnerability was detected in Kino-Kafkaesque ssh-mcp-server up to 8ebbbb99b26f80ff6162fe00957c6dec73fbc5a5. Impacted is the function ssh_exec of the file src/index.ts of the component SSH Command Handler. Performing a manipulation of the argument host/username results in command injection. The attack requires a local approach. The actual existence of this vulnerability is currently in question. This product adopts a rolling release strategy to maintain continuous delivery. Therefore, version details for affected or updated releases cannot be specified. The project maintainer explains: \"The intended threat model is that this MCP server is a local/trusted tool for an agent to execute commands over SSH, so callers already have meaningful execution capability through the exposed shell.\"",
  "id": "GHSA-26qx-2c8w-xjfx",
  "modified": "2026-08-06T15:32:43Z",
  "published": "2026-08-06T15:32:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19039"
    },
    {
      "type": "WEB",
      "url": "https://github.com/KinoThe-Kafkaesque/ssh-mcp-server/issues/3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/KinoThe-Kafkaesque/ssh-mcp-server/issues/3#issuecomment-4319612623"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-19039"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/863828"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/386458"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/386458/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"
    }
  ]
}

CVE-2026-19039 (GCVE-0-2026-19039)

Vulnerability from cvelistv5 – Published: 2026-08-06 13:00 – Updated: 2026-08-06 13:59 Disputed

Title

Kino-Kafkaesque ssh-mcp-server SSH index.ts ssh_exec command injection

Summary

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: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-06 13:57 UTC

CWE

CWE-77 - Command Injection
CWE-74 - Injection

Assigner

VulDB mitre root

References

6 references

URL	Tags
https://vuldb.com/vuln/386458	vdb-entrytechnical-description
https://vuldb.com/vuln/386458/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-19039	third-party-advisory
https://vuldb.com/submit/863828	third-party-advisory
https://github.com/KinoThe-Kafkaesque/ssh-mcp-ser…	issue-tracking
https://github.com/KinoThe-Kafkaesque/ssh-mcp-ser…	issue-tracking

Impacted products

1 product

Vendor	Product	Version
Kino-Kafkaesque	ssh-mcp-server	Affected: 8ebbbb99b26f80ff6162fe00957c6dec73fbc5a5 cpe:2.3:a:kino-kafkaesque:ssh-mcp-server::::::::

Credits

gongyanyu (VulDB User) VulDB CNA Team

Show details on NVD website

JSON

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        "metrics": [
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            "other": {
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                "id": "CVE-2026-19039",
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                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-06T13:57:17.874979Z",
                "version": "2.0.3"
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            "tags": [
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            "url": "https://github.com/KinoThe-Kafkaesque/ssh-mcp-server/issues/3#issuecomment-4319612623"
          }
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        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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          "cpes": [
            "cpe:2.3:a:kino-kafkaesque:ssh-mcp-server:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "SSH Command Handler"
          ],
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          "versions": [
            {
              "status": "affected",
              "version": "8ebbbb99b26f80ff6162fe00957c6dec73fbc5a5"
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      "credits": [
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          "type": "reporter",
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          "lang": "en",
          "type": "coordinator",
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      "descriptions": [
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          "lang": "en",
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        }
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      "metrics": [
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          "name": "Submit #863828 | KinoThe-Kafkaesque ssh-mcp-server unknown Command Injection",
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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.

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.
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GHSA-26QX-2C8W-XJFX

CVE-2026-19039 (GCVE-0-2026-19039)

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Sightings

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