Linux Distros Unpatched Vulnerability : CVE-2026-96747

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(350272);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/25");

  script_cve_id("CVE-2026-96747");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2026-96747");

  script_set_attribute(attribute:"synopsis", value:
"The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be
patched.");
  script_set_attribute(attribute:"description", value:
"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied
patch available.

  - The client-side field level encryption support in the MongoDB Python Driver can treat a key management
    endpoint value ending in .sock as a local Unix domain socket path rather than a remote host. A user with
    write access to the encryption key metadata stored in the database can cause an application using the
    driver to open connections to local sockets on the application host. Data sent over these connections is
    limited to the start of a TLS handshake, so no chosen content is transmitted. (CVE-2026-96747)

Note that Nessus relies on the presence of the package as reported by the vendor.");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-96747");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/CVE-2026-96747");
  script_set_attribute(attribute:"solution", value:
"There is no known solution at this time.");
  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:U/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:U/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-96747");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_set_attribute(attribute:"vendor_unpatched", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/09/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/25");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:22.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:24.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:26.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:12.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:13.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:14.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:pymongo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pymongo");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info2.nasl", "set_linux_os_id.nasl");
  script_require_keys("Host/cpu", "Host/local_checks_enabled", "global_settings/vendor_unpatched", "Host/OS/identifier");
  script_require_ports("Host/OS/Debian Linux-12", "Host/OS/Debian Linux-13", "Host/OS/Debian Linux-14", "Host/OS/Ubuntu Linux-14.04", "Host/OS/Ubuntu Linux-16.04", "Host/OS/Ubuntu Linux-18.04", "Host/OS/Ubuntu Linux-20.04", "Host/OS/Ubuntu Linux-22.04", "Host/OS/Ubuntu Linux-24.04", "Host/OS/Ubuntu Linux-26.04");

  exit(0);
}

if (!get_kb_item("global_settings/vendor_unpatched")) exit(0, "Unpatched Vulnerabilities Detection not active.");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (empty_or_null(get_one_kb_item("Host/Debian/dpkg-l"))) audit(AUDIT_PACKAGE_LIST_MISSING);

include('linux_unpatched.inc');

var distro_constraints_array = {
  "Debian Linux-12": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "12",
        "pkgs": [
          {"reference": "python-pymongo-doc"},
          {"reference": "python3-bson"},
          {"reference": "python3-bson-ext"},
          {"reference": "python3-gridfs"},
          {"reference": "python3-pymongo"},
          {"reference": "python3-pymongo-ext"}
        ]
      }
    ]
  },
  "Debian Linux-13": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "13",
        "pkgs": [
          {"reference": "python-pymongo-doc"},
          {"reference": "python3-bson"},
          {"reference": "python3-bson-ext"},
          {"reference": "python3-gridfs"},
          {"reference": "python3-pymongo"},
          {"reference": "python3-pymongo-ext"}
        ]
      }
    ]
  },
  "Debian Linux-14": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "14",
        "pkgs": [
          {"reference": "python-pymongo-doc"},
          {"reference": "python3-bson"},
          {"reference": "python3-bson-ext"},
          {"reference": "python3-gridfs"},
          {"reference": "python3-pymongo"},
          {"reference": "python3-pymongo-ext"}
        ]
      }
    ]
  },
  "Ubuntu Linux-20.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "20.04",
        "pkgs": [
          {"reference": "python-pymongo-doc"},
          {"reference": "python3-bson"},
          {"reference": "python3-bson-ext"},
          {"reference": "python3-gridfs"},
          {"reference": "python3-pymongo"},
          {"reference": "python3-pymongo-ext"}
        ]
      }
    ]
  },
  "Ubuntu Linux-22.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "22.04",
        "pkgs": [
          {"reference": "python-pymongo-doc"},
          {"reference": "python3-bson"},
          {"reference": "python3-bson-ext"},
          {"reference": "python3-gridfs"},
          {"reference": "python3-pymongo"},
          {"reference": "python3-pymongo-ext"}
        ]
      }
    ]
  },
  "Ubuntu Linux-24.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "24.04",
        "pkgs": [
          {"reference": "python-pymongo-doc"},
          {"reference": "python3-bson"},
          {"reference": "python3-bson-ext"},
          {"reference": "python3-gridfs"},
          {"reference": "python3-pymongo"},
          {"reference": "python3-pymongo-ext"}
        ]
      }
    ]
  },
  "Ubuntu Linux-26.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "26.04",
        "pkgs": [
          {"reference": "python-pymongo-doc"},
          {"reference": "python3-bson"},
          {"reference": "python3-bson-ext"},
          {"reference": "python3-gridfs"},
          {"reference": "python3-pymongo"},
          {"reference": "python3-pymongo-ext"}
        ]
      }
    ]
  },
  "Ubuntu Linux-14.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "14.04",
        "pkgs": [
          {"reference": "python-bson"},
          {"reference": "python-bson-ext"},
          {"reference": "python-gridfs"},
          {"reference": "python-pymongo"},
          {"reference": "python-pymongo-doc"},
          {"reference": "python-pymongo-ext"},
          {"reference": "python3-bson"},
          {"reference": "python3-bson-ext"},
          {"reference": "python3-gridfs"},
          {"reference": "python3-pymongo"},
          {"reference": "python3-pymongo-ext"}
        ]
      }
    ]
  },
  "Ubuntu Linux-16.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "16.04",
        "pkgs": [
          {"reference": "python-bson"},
          {"reference": "python-bson-ext"},
          {"reference": "python-gridfs"},
          {"reference": "python-pymongo"},
          {"reference": "python-pymongo-doc"},
          {"reference": "python-pymongo-ext"},
          {"reference": "python3-bson"},
          {"reference": "python3-bson-ext"},
          {"reference": "python3-gridfs"},
          {"reference": "python3-pymongo"},
          {"reference": "python3-pymongo-ext"}
        ]
      }
    ]
  },
  "Ubuntu Linux-18.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "18.04",
        "pkgs": [
          {"reference": "python-bson"},
          {"reference": "python-bson-ext"},
          {"reference": "python-gridfs"},
          {"reference": "python-pymongo"},
          {"reference": "python-pymongo-doc"},
          {"reference": "python-pymongo-ext"},
          {"reference": "python3-bson"},
          {"reference": "python3-bson-ext"},
          {"reference": "python3-gridfs"},
          {"reference": "python3-pymongo"},
          {"reference": "python3-pymongo-ext"}
        ]
      }
    ]
  }
};

var distro_constraints_values = linux_unpatched::get_distro_constraints(distro_constraints_arr:distro_constraints_array);
if (empty_or_null(distro_constraints_values)) audit(AUDIT_HOST_NOT, 'affected');

var third_party_support = get_kb_item('Host/OS/extended-third-party');
if (!empty_or_null(third_party_support)) {
    var third_party_vendors = distro_constraints_values['third_party'];
    if (!empty_or_null(third_party_vendors)) {
        var vendor;
        foreach vendor (third_party_vendors) {
            if (vendor == third_party_support) exit(0, 'A third party management patch is available for this vulnerability from ' + vendor + '.\n');
        }
    }
}

var report = linux_unpatched::check_unpatched_constraints(distro_constraints_values:distro_constraints_values);

if (!empty_or_null(report))
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : report
  );
  exit(0);
}
else
{
  audit(AUDIT_HOST_NOT, 'affected');
}