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    2 vulnerabilities by trycua

    CVE-2026-86121 (GCVE-0-2026-86121)

    Vulnerability from nvd – Published: 2026-09-05 09:59 – Updated: 2026-09-05 09:59
    VLAI
    Title
    Cua computer-server before 0.3.42 Unauthenticated RCE via Desktop Control
    Summary
    Cua computer-server versions before 0.3.42 skip authentication when the CONTAINER_NAME environment variable is unset and bind to all interfaces by default, allowing unauthenticated attackers to execute arbitrary commands. Attackers can reach TCP port 8000 to run shell commands via the run_command endpoint, read and write arbitrary files through file operation endpoints, and access interactive PTY shells without authentication.
    Severity
    9.3 (Critical)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
    9.8 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    CWE
    • CWE-306 - Missing Authentication for Critical Function
    Assigner
    References
    Impacted products
    Vendor Product Version
    trycua cua-computer-server Affected: 0 , < 0.3.42 (semver)
    		Create a notification for this product.
    Date Public
    2026-06-13 00:00
    Credits
    George Chen
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:pypi/cua-computer-server",
          "product": "cua-computer-server",
          "repo": "https://github.com/trycua/cua",
          "vendor": "trycua",
          "versions": [
            {
              "lessThan": "0.3.42",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "George Chen"
        }
      ],
      "datePublic": "2026-06-13T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Cua computer-server versions before 0.3.42 skip authentication when the CONTAINER_NAME environment variable is unset and bind to all interfaces by default, allowing unauthenticated attackers to execute arbitrary commands. Attackers can reach TCP port 8000 to run shell commands via the run_command endpoint, read and write arbitrary files through file operation endpoints, and access interactive PTY shells without authentication."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-306",
              "description": "Missing Authentication for Critical Function",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-05T09:59:10.093Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Issue #1892",
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/trycua/cua/issues/1892"
        },
        {
          "name": "Server.auth allow-all when CONTAINER_NAME is unset",
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/trycua/cua/blob/10a2e71792db/libs/python/computer-server/computer_server/main.py"
        },
        {
          "name": "CLI --host default of 0.0.0.0",
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/trycua/cua/blob/10a2e71792db/libs/python/computer-server/computer_server/cli.py"
        },
        {
          "name": "Bind default changed to 127.0.0.1",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/trycua/cua/commit/59cf25c0ec54"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/trycua/cua"
        },
        {
          "name": "VulnCheck Advisory: Cua computer-server before 0.3.42 Unauthenticated RCE via Desktop Control",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/cua-computer-server-before-0.3.42-unauthenticated-rce-via-desktop-control"
        }
      ],
      "title": "Cua computer-server before 0.3.42 Unauthenticated RCE via Desktop Control",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-86121",
    "datePublished": "2026-09-05T09:59:10.093Z",
    "dateReserved": "2026-09-05T01:59:22.753Z",
    "dateUpdated": "2026-09-05T09:59:10.093Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-86121 (GCVE-0-2026-86121)

    Vulnerability from cvelistv5 – Published: 2026-09-05 09:59 – Updated: 2026-09-05 09:59
    VLAI
    Title
    Cua computer-server before 0.3.42 Unauthenticated RCE via Desktop Control
    Summary
    Cua computer-server versions before 0.3.42 skip authentication when the CONTAINER_NAME environment variable is unset and bind to all interfaces by default, allowing unauthenticated attackers to execute arbitrary commands. Attackers can reach TCP port 8000 to run shell commands via the run_command endpoint, read and write arbitrary files through file operation endpoints, and access interactive PTY shells without authentication.
    Severity
    9.3 (Critical)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
    9.8 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    CWE
    • CWE-306 - Missing Authentication for Critical Function
    Assigner
    References
    Impacted products
    Vendor Product Version
    trycua cua-computer-server Affected: 0 , < 0.3.42 (semver)
    		Create a notification for this product.
    Date Public
    2026-06-13 00:00
    Credits
    George Chen
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:pypi/cua-computer-server",
          "product": "cua-computer-server",
          "repo": "https://github.com/trycua/cua",
          "vendor": "trycua",
          "versions": [
            {
              "lessThan": "0.3.42",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "George Chen"
        }
      ],
      "datePublic": "2026-06-13T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Cua computer-server versions before 0.3.42 skip authentication when the CONTAINER_NAME environment variable is unset and bind to all interfaces by default, allowing unauthenticated attackers to execute arbitrary commands. Attackers can reach TCP port 8000 to run shell commands via the run_command endpoint, read and write arbitrary files through file operation endpoints, and access interactive PTY shells without authentication."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-306",
              "description": "Missing Authentication for Critical Function",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-05T09:59:10.093Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Issue #1892",
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/trycua/cua/issues/1892"
        },
        {
          "name": "Server.auth allow-all when CONTAINER_NAME is unset",
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/trycua/cua/blob/10a2e71792db/libs/python/computer-server/computer_server/main.py"
        },
        {
          "name": "CLI --host default of 0.0.0.0",
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/trycua/cua/blob/10a2e71792db/libs/python/computer-server/computer_server/cli.py"
        },
        {
          "name": "Bind default changed to 127.0.0.1",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/trycua/cua/commit/59cf25c0ec54"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/trycua/cua"
        },
        {
          "name": "VulnCheck Advisory: Cua computer-server before 0.3.42 Unauthenticated RCE via Desktop Control",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/cua-computer-server-before-0.3.42-unauthenticated-rce-via-desktop-control"
        }
      ],
      "title": "Cua computer-server before 0.3.42 Unauthenticated RCE via Desktop Control",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-86121",
    "datePublished": "2026-09-05T09:59:10.093Z",
    "dateReserved": "2026-09-05T01:59:22.753Z",
    "dateUpdated": "2026-09-05T09:59:10.093Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}