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    2 vulnerabilities found for fast-agent by evalstate

    CVE-2026-102610 (GCVE-0-2026-102610)

    Vulnerability from nvd – Published: 2026-11-06 20:55 – Updated: 2026-11-06 20:55
    VLAI
    Title
    fast-agent: `fast-agent serve` binds HTTP to 0.0.0.0 with no authentication by default; with --shell this is unauthenticated remote command execution
    Summary
    fast-agent is a framework for building, running, and evaluating AI agents with Model Context Protocol support. Prior to 0.7.21, fast-agent serve uses HTTP transport bound to 0.0.0.0 on port 8000 without authentication, allowing any network client that can reach the /mcp endpoint to invoke the exposed agent tool. When the server is started with --shell, the agent can call the local execute tool implemented by tools/local_shell_executor.py, so an unauthenticated remote client can cause operating-system commands to run as the server user; without --shell, the client can still consume the operator's model and configured MCP tools. The defaults are defined in cli/commands/serve.py and mcp/server/agent_server.py, and the non-interactive server permission prompt does not prevent the described access. This issue is fixed in version 0.7.21.
    Severity
    6.4 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
    CWE
    • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
    • CWE-306 - Missing Authentication for Critical Function
    Assigner
    GitHub_M CNA under the mitre root
    CNA scorecard C 72/100 over 7895 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    evalstate fast-agent Affected: < 0.7.21
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "fast-agent",
          "vendor": "evalstate",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.7.21"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "fast-agent is a framework for building, running, and evaluating AI agents with Model Context Protocol support. Prior to 0.7.21, fast-agent serve uses HTTP transport bound to 0.0.0.0 on port 8000 without authentication, allowing any network client that can reach the /mcp endpoint to invoke the exposed agent tool. When the server is started with --shell, the agent can call the local execute tool implemented by tools/local_shell_executor.py, so an unauthenticated remote client can cause operating-system commands to run as the server user; without --shell, the client can still consume the operator\u0027s model and configured MCP tools. The defaults are defined in cli/commands/serve.py and mcp/server/agent_server.py, and the non-interactive server permission prompt does not prevent the described access. This issue is fixed in version 0.7.21."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-78",
              "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-306",
              "description": "CWE-306: Missing Authentication for Critical Function",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-06T20:55:55.852Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/evalstate/fast-agent/security/advisories/GHSA-9vhv-g5hf-m7m7",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/evalstate/fast-agent/security/advisories/GHSA-9vhv-g5hf-m7m7"
        },
        {
          "name": "https://github.com/evalstate/fast-agent/pull/828",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/evalstate/fast-agent/pull/828"
        },
        {
          "name": "https://github.com/evalstate/fast-agent/commit/ba99f89c3ec7f1ef1c8b1ebce381c12b60dfea29",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/evalstate/fast-agent/commit/ba99f89c3ec7f1ef1c8b1ebce381c12b60dfea29"
        },
        {
          "name": "https://github.com/evalstate/fast-agent/releases/tag/v0.7.21",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/evalstate/fast-agent/releases/tag/v0.7.21"
        }
      ],
      "source": {
        "advisory": "GHSA-9vhv-g5hf-m7m7",
        "discovery": "UNKNOWN"
      },
      "title": "fast-agent: `fast-agent serve` binds HTTP to 0.0.0.0 with no authentication by default; with --shell this is unauthenticated remote command execution"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-102610",
    "datePublished": "2026-11-06T20:55:55.852Z",
    "dateReserved": "2026-09-29T14:18:02.921Z",
    "dateUpdated": "2026-11-06T20:55:55.852Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-102610 (GCVE-0-2026-102610)

    Vulnerability from cvelistv5 – Published: 2026-11-06 20:55 – Updated: 2026-11-06 20:55
    VLAI
    Title
    fast-agent: `fast-agent serve` binds HTTP to 0.0.0.0 with no authentication by default; with --shell this is unauthenticated remote command execution
    Summary
    fast-agent is a framework for building, running, and evaluating AI agents with Model Context Protocol support. Prior to 0.7.21, fast-agent serve uses HTTP transport bound to 0.0.0.0 on port 8000 without authentication, allowing any network client that can reach the /mcp endpoint to invoke the exposed agent tool. When the server is started with --shell, the agent can call the local execute tool implemented by tools/local_shell_executor.py, so an unauthenticated remote client can cause operating-system commands to run as the server user; without --shell, the client can still consume the operator's model and configured MCP tools. The defaults are defined in cli/commands/serve.py and mcp/server/agent_server.py, and the non-interactive server permission prompt does not prevent the described access. This issue is fixed in version 0.7.21.
    Severity
    6.4 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
    CWE
    • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
    • CWE-306 - Missing Authentication for Critical Function
    Assigner
    GitHub_M CNA under the mitre root
    CNA scorecard C 72/100 over 7895 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    evalstate fast-agent Affected: < 0.7.21
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "fast-agent",
          "vendor": "evalstate",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.7.21"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "fast-agent is a framework for building, running, and evaluating AI agents with Model Context Protocol support. Prior to 0.7.21, fast-agent serve uses HTTP transport bound to 0.0.0.0 on port 8000 without authentication, allowing any network client that can reach the /mcp endpoint to invoke the exposed agent tool. When the server is started with --shell, the agent can call the local execute tool implemented by tools/local_shell_executor.py, so an unauthenticated remote client can cause operating-system commands to run as the server user; without --shell, the client can still consume the operator\u0027s model and configured MCP tools. The defaults are defined in cli/commands/serve.py and mcp/server/agent_server.py, and the non-interactive server permission prompt does not prevent the described access. This issue is fixed in version 0.7.21."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-78",
              "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-306",
              "description": "CWE-306: Missing Authentication for Critical Function",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-06T20:55:55.852Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/evalstate/fast-agent/security/advisories/GHSA-9vhv-g5hf-m7m7",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/evalstate/fast-agent/security/advisories/GHSA-9vhv-g5hf-m7m7"
        },
        {
          "name": "https://github.com/evalstate/fast-agent/pull/828",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/evalstate/fast-agent/pull/828"
        },
        {
          "name": "https://github.com/evalstate/fast-agent/commit/ba99f89c3ec7f1ef1c8b1ebce381c12b60dfea29",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/evalstate/fast-agent/commit/ba99f89c3ec7f1ef1c8b1ebce381c12b60dfea29"
        },
        {
          "name": "https://github.com/evalstate/fast-agent/releases/tag/v0.7.21",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/evalstate/fast-agent/releases/tag/v0.7.21"
        }
      ],
      "source": {
        "advisory": "GHSA-9vhv-g5hf-m7m7",
        "discovery": "UNKNOWN"
      },
      "title": "fast-agent: `fast-agent serve` binds HTTP to 0.0.0.0 with no authentication by default; with --shell this is unauthenticated remote command execution"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-102610",
    "datePublished": "2026-11-06T20:55:55.852Z",
    "dateReserved": "2026-09-29T14:18:02.921Z",
    "dateUpdated": "2026-11-06T20:55:55.852Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}