Linux Distros Unpatched Vulnerability : CVE-2026-12151

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

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  script_id(321561);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/06/20");

  script_cve_id("CVE-2026-12151");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2026-12151");

  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.

  - Impact: The undici WebSocket client enforces maxPayloadSize on the cumulative byte count of fragments in a
    message but does not enforce a limit on the number of fragments. A malicious WebSocket server can stream
    many small or empty continuation frames that each pass per-frame and cumulative-size validation,
    collectively causing unbounded memory growth in the client process. The result is memory exhaustion and a
    denial of service. Affected applications are those using the undici WebSocket client (new WebSocket(...))
    or the WebSocketStream API that can be induced to connect to an attacker-controlled or compromised
    WebSocket endpoint. All releases starting at undici 6.17.0 are affected. Patches: Upgrade to undici >=
    6.26.0, >= 7.28.0, or >= 8.5.0. Workarounds: No workaround is available. The fix must be applied through
    an upgrade. (CVE-2026-12151)

Note that Nessus relies on the presence of the package as reported by the vendor.");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/cve-2026-12151");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2026-12151");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/CVE-2026-12151");
  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:N/AC:L/Au:N/C:N/I:N/A:P");
  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:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:U/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-12151");

  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:"2026/06/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/06/20");

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  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");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:nodejs-nodemon");
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  script_dependencies("ssh_get_info2.nasl", "set_linux_os_id.nasl");
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}

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/CentOS/rpm-list")) && empty_or_null(get_one_kb_item("Host/Debian/dpkg-l")) && empty_or_null(get_one_kb_item("Host/RedHat/rpm-list"))) 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": "node-llhttp"},
          {"reference": "node-undici"}
        ]
      }
    ]
  },
  "Debian Linux-14": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "14",
        "pkgs": [
          {"reference": "node-undici"}
        ]
      }
    ]
  },
  "Ubuntu Linux-24.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "24.04",
        "pkgs": [
          {"reference": "node-undici"}
        ]
      }
    ]
  },
  "Ubuntu Linux-25.10": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "25.10",
        "pkgs": [
          {"reference": "node-undici"}
        ]
      }
    ]
  },
  "Ubuntu Linux-26.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "26.04",
        "pkgs": [
          {"reference": "node-undici"}
        ]
      }
    ]
  },
  "Debian Linux-13": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "13",
        "pkgs": [
          {"reference": "libllhttp-dev"},
          {"reference": "libllhttp9.2"},
          {"reference": "node-llhttp"},
          {"reference": "node-undici"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-10": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "10",
        "pkgs": [
          {"reference": "nodejs"},
          {"reference": "nodejs-devel"},
          {"reference": "nodejs-docs"},
          {"reference": "nodejs-full-i18n"},
          {"reference": "nodejs-libs"},
          {"reference": "nodejs-npm"},
          {"reference": "nodejs22"},
          {"reference": "nodejs24"},
          {"reference": "nodejs24-devel"},
          {"reference": "nodejs24-docs"},
          {"reference": "nodejs24-full-i18n"},
          {"reference": "nodejs24-libs"},
          {"reference": "nodejs24-npm"}
        ]
      }
    ]
  },
  "CentOS Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "nodejs"},
          {"reference": "nodejs-devel"},
          {"reference": "nodejs-docs"},
          {"reference": "nodejs-full-i18n"},
          {"reference": "nodejs-libs"},
          {"reference": "nodejs-nodemon"},
          {"reference": "nodejs-packaging"},
          {"reference": "nodejs-packaging-bundler"},
          {"reference": "npm"},
          {"reference": "v8-12.4-devel"},
          {"reference": "v8-13.6-devel"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "nodejs"},
          {"reference": "nodejs-devel"},
          {"reference": "nodejs-docs"},
          {"reference": "nodejs-full-i18n"},
          {"reference": "nodejs-libs"},
          {"reference": "nodejs-nodemon"},
          {"reference": "nodejs-packaging"},
          {"reference": "nodejs-packaging-bundler"},
          {"reference": "npm"},
          {"reference": "v8-12.4-devel"},
          {"reference": "v8-13.6-devel"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-9": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "9",
        "pkgs": [
          {"reference": "nodejs"},
          {"reference": "nodejs-docs"},
          {"reference": "nodejs-full-i18n"},
          {"reference": "nodejs-libs"},
          {"reference": "npm"}
        ]
      }
    ]
  }
};

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 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');
}