Linux Distros Unpatched Vulnerability : CVE-2026-96618

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

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  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2026-96618");

  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.

  - Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in hexpm hex allows an
    untrusted package mirror to exhaust the memory or disk space of the machine running mix deps.get, mix
    deps.update, mix hex.package fetch or mix hex.docs fetch. Hex treats a mirror configured with
    HEX_MIRROR_URL, HEX_MIRROR or mirror_url as untrusted: it doesn't send credentials to it, and it checks
    registry signatures and package checksums that the mirror can't forge. Several response paths consume
    memory or disk in proportion to what the mirror sends before any of those checks run. Hex.HTTP.request/5
    reads the whole response body into memory and decompresses it with :zlib.gunzip/1 whenever the response's
    Content-Encoding contains gzip, with no limit on the compressed or decompressed size. Hex doesn't ask for
    compressed responses, so the server decides whether this step runs. It applies to registry, package, docs
    and API responses. Package tarballs have no download size limit. Hex 2.5.1 holds the whole tarball in
    memory and writes it to the cache, and the development branch streams it to a temporary file; the 16 MiB
    tarball limit is checked only when the file is unpacked. The tarball is then unpacked, into deps/<app> in
    2.5.1 and into a staging directory on the development branch, before its checksums are compared with the
    registry. mix hex.docs fetch, and mix hex.docs offline when docs are missing, write the docs tarball to
    disk and extract it with :mix_hex_erl_tar.extract/2 without the 16 MiB compressed and 128 MiB decompressed
    limits that mix_hex_tarball:unpack_docs/3 applies. The signed registry doesn't cover docs tarballs, so
    nothing checks them. Registry responses are also decompressed before their signature is checked, in
    hex_core code that Hex vendors; that part is tracked in
    https://github.com/hexpm/hex_core/security/advisories/GHSA-7c4r-cgf9-9jmq. This issue affects hex: from
    0.11.2 before 2.5.2. (CVE-2026-96618)

Note that Nessus relies on the presence of the package as reported by the vendor.");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python3-samba-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python3-samba-test");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rls");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rpm-ostree");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rpm-ostree-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rpm-ostree-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rust");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rust-analysis");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rust-analyzer");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rust-bootupd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rust-crypto-auditing-agent");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rust-crypto-auditing-log-parser");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rust-debugger-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rust-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rust-gdb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rust-lldb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rust-src");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rust-std-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rust-std-static-aarch64-unknown-none-softfloat");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rust-std-static-wasm32-unknown-unknown");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rust-std-static-wasm32-wasi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rust-std-static-wasm32-wasip1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rust-std-static-x86_64-unknown-none");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rust-toolset");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rust-toolset-srpm-macros");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rustfmt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-client-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-common-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-common-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-dc-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-dcerpc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-gpupdate");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-krb5-printing");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-ldb-ldap-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-pidl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-test");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-test-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-usershares");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-vfs-iouring");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-winbind");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-winbind-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-winbind-krb5-locator");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-winbind-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-winexe");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:sevctl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:snphost");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:stratisd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:stratisd-dracut");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:stratisd-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:system-reinstall-bootc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:thunderbird");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:trustee-guest-components");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:trustee-kbs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:virt-firmware-rs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:wayland-devel");
  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/CentOS Linux-7", "Host/OS/CentOS Linux-8", "Host/OS/Debian Linux-13", "Host/OS/Debian Linux-14", "Host/OS/Red Hat Enterprise Linux-10", "Host/OS/Red Hat Enterprise Linux-7", "Host/OS/Red Hat Enterprise Linux-8", "Host/OS/Red Hat Enterprise Linux-9");

  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/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-13": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "13",
        "pkgs": [
          {"reference": "erlang-hex"}
        ]
      }
    ]
  },
  "Debian Linux-14": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "14",
        "pkgs": [
          {"reference": "erlang-hex"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-10": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "10",
        "pkgs": [
          {"reference": "afterburn"},
          {"reference": "afterburn-dracut"},
          {"reference": "bootc"},
          {"reference": "bootupd"},
          {"reference": "cargo"},
          {"reference": "clevis-pin-trustee"},
          {"reference": "clippy"},
          {"reference": "coreos-installer"},
          {"reference": "coreos-installer-bootinfra"},
          {"reference": "coreos-installer-dracut"},
          {"reference": "firefox"},
          {"reference": "glycin-loaders"},
          {"reference": "goose"},
          {"reference": "igvm"},
          {"reference": "keylime-agent-rust"},
          {"reference": "keylime-agent-rust-common"},
          {"reference": "keylime-agent-rust-ima-emulator"},
          {"reference": "keylime-agent-rust-push"},
          {"reference": "ldb-tools"},
          {"reference": "libldb"},
          {"reference": "libldb-devel"},
          {"reference": "libnetapi"},
          {"reference": "libnetapi-devel"},
          {"reference": "libsmbclient"},
          {"reference": "libsmbclient-devel"},
          {"reference": "libwayland-client"},
          {"reference": "libwayland-cursor"},
          {"reference": "libwayland-egl"},
          {"reference": "libwayland-server"},
          {"reference": "libwbclient"},
          {"reference": "libwbclient-devel"},
          {"reference": "loupe"},
          {"reference": "netavark"},
          {"reference": "nmstate"},
          {"reference": "nmstate-devel"},
          {"reference": "nmstate-libs"},
          {"reference": "nmstate-static"},
          {"reference": "papers"},
          {"reference": "papers-devel"},
          {"reference": "papers-libs"},
          {"reference": "papers-nautilus"},
          {"reference": "papers-previewer"},
          {"reference": "papers-thumbnailer"},
          {"reference": "python3-ldb"},
          {"reference": "python3-libnmstate"},
          {"reference": "python3-samba"},
          {"reference": "python3-samba-dc"},
          {"reference": "python3-samba-test"},
          {"reference": "rpm-ostree"},
          {"reference": "rpm-ostree-libs"},
          {"reference": "rust"},
          {"reference": "rust-analyzer"},
          {"reference": "rust-crypto-auditing-agent"},
          {"reference": "rust-crypto-auditing-log-parser"},
          {"reference": "rust-debugger-common"},
          {"reference": "rust-doc"},
          {"reference": "rust-gdb"},
          {"reference": "rust-lldb"},
          {"reference": "rust-src"},
          {"reference": "rust-std-static"},
          {"reference": "rust-std-static-aarch64-unknown-none-softfloat"},
          {"reference": "rust-std-static-wasm32-unknown-unknown"},
          {"reference": "rust-std-static-wasm32-wasip1"},
          {"reference": "rust-std-static-x86_64-unknown-none"},
          {"reference": "rust-toolset"},
          {"reference": "rust-toolset-srpm-macros"},
          {"reference": "rustfmt"},
          {"reference": "samba"},
          {"reference": "samba-client"},
          {"reference": "samba-client-libs"},
          {"reference": "samba-common"},
          {"reference": "samba-common-libs"},
          {"reference": "samba-common-tools"},
          {"reference": "samba-dc-libs"},
          {"reference": "samba-dcerpc"},
          {"reference": "samba-devel"},
          {"reference": "samba-gpupdate"},
          {"reference": "samba-krb5-printing"},
          {"reference": "samba-ldb-ldap-modules"},
          {"reference": "samba-libs"},
          {"reference": "samba-pidl"},
          {"reference": "samba-test"},
          {"reference": "samba-test-libs"},
          {"reference": "samba-tools"},
          {"reference": "samba-usershares"},
          {"reference": "samba-vfs-iouring"},
          {"reference": "samba-winbind"},
          {"reference": "samba-winbind-clients"},
          {"reference": "samba-winbind-krb5-locator"},
          {"reference": "samba-winbind-modules"},
          {"reference": "samba-winexe"},
          {"reference": "sevctl"},
          {"reference": "snphost"},
          {"reference": "stratisd"},
          {"reference": "stratisd-dracut"},
          {"reference": "stratisd-tools"},
          {"reference": "system-reinstall-bootc"},
          {"reference": "thunderbird"},
          {"reference": "trustee-guest-components"},
          {"reference": "trustee-kbs"},
          {"reference": "virt-firmware-rs"},
          {"reference": "wayland-devel"}
        ]
      }
    ]
  },
  "CentOS Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "firefox"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "firefox"}
        ]
      }
    ]
  },
  "CentOS Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "aardvark-dns"},
          {"reference": "cargo"},
          {"reference": "cargo-doc"},
          {"reference": "clippy"},
          {"reference": "containers-common"},
          {"reference": "firefox"},
          {"reference": "netavark"},
          {"reference": "rls"},
          {"reference": "rpm-ostree"},
          {"reference": "rpm-ostree-libs"},
          {"reference": "rust"},
          {"reference": "rust-analysis"},
          {"reference": "rust-analyzer"},
          {"reference": "rust-debugger-common"},
          {"reference": "rust-doc"},
          {"reference": "rust-gdb"},
          {"reference": "rust-lldb"},
          {"reference": "rust-src"},
          {"reference": "rust-std-static"},
          {"reference": "rust-std-static-wasm32-unknown-unknown"},
          {"reference": "rust-std-static-wasm32-wasi"},
          {"reference": "rust-toolset"},
          {"reference": "rustfmt"},
          {"reference": "thunderbird"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "aardvark-dns"},
          {"reference": "cargo"},
          {"reference": "cargo-doc"},
          {"reference": "clippy"},
          {"reference": "containers-common"},
          {"reference": "firefox"},
          {"reference": "netavark"},
          {"reference": "rls"},
          {"reference": "rpm-ostree"},
          {"reference": "rpm-ostree-libs"},
          {"reference": "rust"},
          {"reference": "rust-analysis"},
          {"reference": "rust-analyzer"},
          {"reference": "rust-debugger-common"},
          {"reference": "rust-doc"},
          {"reference": "rust-gdb"},
          {"reference": "rust-lldb"},
          {"reference": "rust-src"},
          {"reference": "rust-std-static"},
          {"reference": "rust-std-static-wasm32-unknown-unknown"},
          {"reference": "rust-std-static-wasm32-wasi"},
          {"reference": "rust-toolset"},
          {"reference": "rustfmt"},
          {"reference": "thunderbird"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-9": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "9",
        "pkgs": [
          {"reference": "afterburn"},
          {"reference": "afterburn-dracut"},
          {"reference": "bootc"},
          {"reference": "bootupd"},
          {"reference": "cargo"},
          {"reference": "clevis-pin-trustee"},
          {"reference": "clippy"},
          {"reference": "coreos-installer"},
          {"reference": "coreos-installer-bootinfra"},
          {"reference": "coreos-installer-dracut"},
          {"reference": "ctdb"},
          {"reference": "fdo-admin-cli"},
          {"reference": "fdo-client"},
          {"reference": "fdo-init"},
          {"reference": "fdo-manufacturing-server"},
          {"reference": "fdo-owner-cli"},
          {"reference": "fdo-owner-onboarding-server"},
          {"reference": "fdo-rendezvous-server"},
          {"reference": "firefox"},
          {"reference": "firefox-x11"},
          {"reference": "goose"},
          {"reference": "keylime-agent-rust"},
          {"reference": "ldb-tools"},
          {"reference": "libldb"},
          {"reference": "libldb-devel"},
          {"reference": "libnetapi"},
          {"reference": "libnetapi-devel"},
          {"reference": "libsmbclient"},
          {"reference": "libsmbclient-devel"},
          {"reference": "libwbclient"},
          {"reference": "libwbclient-devel"},
          {"reference": "netavark"},
          {"reference": "nmstate"},
          {"reference": "nmstate-devel"},
          {"reference": "nmstate-libs"},
          {"reference": "nmstate-plugin-ovsdb"},
          {"reference": "nmstate-static"},
          {"reference": "python3-ldb"},
          {"reference": "python3-libnmstate"},
          {"reference": "python3-samba"},
          {"reference": "python3-samba-dc"},
          {"reference": "python3-samba-devel"},
          {"reference": "python3-samba-test"},
          {"reference": "rpm-ostree"},
          {"reference": "rpm-ostree-devel"},
          {"reference": "rpm-ostree-libs"},
          {"reference": "rust"},
          {"reference": "rust-analysis"},
          {"reference": "rust-analyzer"},
          {"reference": "rust-bootupd"},
          {"reference": "rust-debugger-common"},
          {"reference": "rust-doc"},
          {"reference": "rust-gdb"},
          {"reference": "rust-lldb"},
          {"reference": "rust-src"},
          {"reference": "rust-std-static"},
          {"reference": "rust-std-static-wasm32-unknown-unknown"},
          {"reference": "rust-std-static-wasm32-wasi"},
          {"reference": "rust-std-static-wasm32-wasip1"},
          {"reference": "rust-toolset"},
          {"reference": "rustfmt"},
          {"reference": "samba"},
          {"reference": "samba-client"},
          {"reference": "samba-client-libs"},
          {"reference": "samba-common"},
          {"reference": "samba-common-libs"},
          {"reference": "samba-common-tools"},
          {"reference": "samba-dc-libs"},
          {"reference": "samba-dcerpc"},
          {"reference": "samba-devel"},
          {"reference": "samba-gpupdate"},
          {"reference": "samba-krb5-printing"},
          {"reference": "samba-ldb-ldap-modules"},
          {"reference": "samba-libs"},
          {"reference": "samba-pidl"},
          {"reference": "samba-test"},
          {"reference": "samba-test-libs"},
          {"reference": "samba-tools"},
          {"reference": "samba-usershares"},
          {"reference": "samba-vfs-iouring"},
          {"reference": "samba-winbind"},
          {"reference": "samba-winbind-clients"},
          {"reference": "samba-winbind-krb5-locator"},
          {"reference": "samba-winbind-modules"},
          {"reference": "samba-winexe"},
          {"reference": "sevctl"},
          {"reference": "snphost"},
          {"reference": "system-reinstall-bootc"},
          {"reference": "thunderbird"},
          {"reference": "trustee-guest-components"}
        ]
      }
    ]
  }
};

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');
}