RHEL 10 : libsoup3 (RHSA-2026:2006)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2026:2006. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(298014);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/02/24");

  script_cve_id("CVE-2026-0719", "CVE-2026-1761");
  script_xref(name:"RHSA", value:"2026:2006");
  script_xref(name:"IAVA", value:"2026-A-0139-S");

  script_name(english:"RHEL 10 : libsoup3 (RHSA-2026:2006)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates for libsoup3.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2026:2006 advisory.

    Libsoup is an HTTP library implementation in C. It was originally part of a SOAP (Simple Object Access
    Protocol) implementation called Soup, but the SOAP and non-SOAP parts have now been split into separate
    packages.  libsoup uses the Glib main loop and is designed to work well with GTK applications. This
    enables GNOME applications to access HTTP servers on the network in a completely asynchronous fashion,
    very similar to the Gtk+ programming model (a synchronous operation mode is also supported for those who
    want it), but the SOAP parts were removed long ago.

    Security Fix(es):

    * libsoup: Signed to Unsigned Conversion Error Leading to Stack-Based Buffer Overflow in libsoup NTLM
    Authentication (CVE-2026-0719)

    * libsoup: Stack-Based Buffer Overflow in libsoup Multipart Response Parsingmultipart HTTP response
    (CVE-2026-1761)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and
    other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#important");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2427906");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2435961");
  # https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_2006.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?fc6e742e");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2026:2006");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL libsoup3 package based on the guidance in RHSA-2026:2006.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:C/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-1761");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(121);
  script_set_attribute(attribute:"vendor_severity", value:"Important");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/10/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/02/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/02/05");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux_eus:10.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libsoup3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libsoup3-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libsoup3-doc");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Red Hat Local Security Checks");

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

  script_dependencies("ssh_get_info.nasl", "redhat_repos.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include('rpm2.inc');
include('rhel.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_product = get_kb_item('installed_os/local/SSH/0/product');
if (isnull(os_product) || 'Red Hat' >!< os_product) audit(AUDIT_OS_NOT, 'Red Hat');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
if (!rhel_check_release(operator: 'ge', os_version: os_version, rhel_version: '10')) audit(AUDIT_OS_NOT, 'Red Hat 10.x', 'Red Hat ' + os_version);

if (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);

var constraints = [
  {
    'release': '10',
    'sp': '0',
    'repo_relative_urls': [
      'content/e4s/rhel10/10.0/aarch64/appstream/debug',
      'content/e4s/rhel10/10.0/aarch64/appstream/os',
      'content/e4s/rhel10/10.0/aarch64/appstream/source/SRPMS',
      'content/e4s/rhel10/10.0/aarch64/baseos/debug',
      'content/e4s/rhel10/10.0/aarch64/baseos/os',
      'content/e4s/rhel10/10.0/aarch64/baseos/source/SRPMS',
      'content/e4s/rhel10/10.0/aarch64/highavailability/debug',
      'content/e4s/rhel10/10.0/aarch64/highavailability/os',
      'content/e4s/rhel10/10.0/aarch64/highavailability/source/SRPMS',
      'content/e4s/rhel10/10.0/aarch64/rt/debug',
      'content/e4s/rhel10/10.0/aarch64/rt/os',
      'content/e4s/rhel10/10.0/aarch64/rt/source/SRPMS',
      'content/e4s/rhel10/10.0/ppc64le/appstream/debug',
      'content/e4s/rhel10/10.0/ppc64le/appstream/os',
      'content/e4s/rhel10/10.0/ppc64le/appstream/source/SRPMS',
      'content/e4s/rhel10/10.0/ppc64le/baseos/debug',
      'content/e4s/rhel10/10.0/ppc64le/baseos/os',
      'content/e4s/rhel10/10.0/ppc64le/baseos/source/SRPMS',
      'content/e4s/rhel10/10.0/ppc64le/highavailability/debug',
      'content/e4s/rhel10/10.0/ppc64le/highavailability/os',
      'content/e4s/rhel10/10.0/ppc64le/highavailability/source/SRPMS',
      'content/e4s/rhel10/10.0/ppc64le/sap-solutions/debug',
      'content/e4s/rhel10/10.0/ppc64le/sap-solutions/os',
      'content/e4s/rhel10/10.0/ppc64le/sap-solutions/source/SRPMS',
      'content/e4s/rhel10/10.0/ppc64le/sap/debug',
      'content/e4s/rhel10/10.0/ppc64le/sap/os',
      'content/e4s/rhel10/10.0/ppc64le/sap/source/SRPMS',
      'content/e4s/rhel10/10.0/s390x/appstream/debug',
      'content/e4s/rhel10/10.0/s390x/appstream/os',
      'content/e4s/rhel10/10.0/s390x/appstream/source/SRPMS',
      'content/e4s/rhel10/10.0/s390x/baseos/debug',
      'content/e4s/rhel10/10.0/s390x/baseos/os',
      'content/e4s/rhel10/10.0/s390x/baseos/source/SRPMS',
      'content/e4s/rhel10/10.0/s390x/highavailability/debug',
      'content/e4s/rhel10/10.0/s390x/highavailability/os',
      'content/e4s/rhel10/10.0/s390x/highavailability/source/SRPMS',
      'content/e4s/rhel10/10.0/s390x/sap/debug',
      'content/e4s/rhel10/10.0/s390x/sap/os',
      'content/e4s/rhel10/10.0/s390x/sap/source/SRPMS',
      'content/e4s/rhel10/10.0/x86_64/appstream/debug',
      'content/e4s/rhel10/10.0/x86_64/appstream/os',
      'content/e4s/rhel10/10.0/x86_64/appstream/source/SRPMS',
      'content/e4s/rhel10/10.0/x86_64/baseos/debug',
      'content/e4s/rhel10/10.0/x86_64/baseos/os',
      'content/e4s/rhel10/10.0/x86_64/baseos/source/SRPMS',
      'content/e4s/rhel10/10.0/x86_64/highavailability/debug',
      'content/e4s/rhel10/10.0/x86_64/highavailability/os',
      'content/e4s/rhel10/10.0/x86_64/highavailability/source/SRPMS',
      'content/e4s/rhel10/10.0/x86_64/nfv/debug',
      'content/e4s/rhel10/10.0/x86_64/nfv/os',
      'content/e4s/rhel10/10.0/x86_64/nfv/source/SRPMS',
      'content/e4s/rhel10/10.0/x86_64/rt/debug',
      'content/e4s/rhel10/10.0/x86_64/rt/os',
      'content/e4s/rhel10/10.0/x86_64/rt/source/SRPMS',
      'content/e4s/rhel10/10.0/x86_64/sap-solutions/debug',
      'content/e4s/rhel10/10.0/x86_64/sap-solutions/os',
      'content/e4s/rhel10/10.0/x86_64/sap-solutions/source/SRPMS',
      'content/e4s/rhel10/10.0/x86_64/sap/debug',
      'content/e4s/rhel10/10.0/x86_64/sap/os',
      'content/e4s/rhel10/10.0/x86_64/sap/source/SRPMS',
      'content/eus/rhel10/10.0/aarch64/appstream/debug',
      'content/eus/rhel10/10.0/aarch64/appstream/os',
      'content/eus/rhel10/10.0/aarch64/appstream/source/SRPMS',
      'content/eus/rhel10/10.0/aarch64/baseos/debug',
      'content/eus/rhel10/10.0/aarch64/baseos/os',
      'content/eus/rhel10/10.0/aarch64/baseos/source/SRPMS',
      'content/eus/rhel10/10.0/aarch64/codeready-builder/debug',
      'content/eus/rhel10/10.0/aarch64/codeready-builder/os',
      'content/eus/rhel10/10.0/aarch64/codeready-builder/source/SRPMS',
      'content/eus/rhel10/10.0/aarch64/highavailability/debug',
      'content/eus/rhel10/10.0/aarch64/highavailability/os',
      'content/eus/rhel10/10.0/aarch64/highavailability/source/SRPMS',
      'content/eus/rhel10/10.0/aarch64/supplementary/debug',
      'content/eus/rhel10/10.0/aarch64/supplementary/os',
      'content/eus/rhel10/10.0/aarch64/supplementary/source/SRPMS',
      'content/eus/rhel10/10.0/ppc64le/appstream/debug',
      'content/eus/rhel10/10.0/ppc64le/appstream/os',
      'content/eus/rhel10/10.0/ppc64le/appstream/source/SRPMS',
      'content/eus/rhel10/10.0/ppc64le/baseos/debug',
      'content/eus/rhel10/10.0/ppc64le/baseos/os',
      'content/eus/rhel10/10.0/ppc64le/baseos/source/SRPMS',
      'content/eus/rhel10/10.0/ppc64le/codeready-builder/debug',
      'content/eus/rhel10/10.0/ppc64le/codeready-builder/os',
      'content/eus/rhel10/10.0/ppc64le/codeready-builder/source/SRPMS',
      'content/eus/rhel10/10.0/ppc64le/highavailability/debug',
      'content/eus/rhel10/10.0/ppc64le/highavailability/os',
      'content/eus/rhel10/10.0/ppc64le/highavailability/source/SRPMS',
      'content/eus/rhel10/10.0/ppc64le/sap-solutions/debug',
      'content/eus/rhel10/10.0/ppc64le/sap-solutions/os',
      'content/eus/rhel10/10.0/ppc64le/sap-solutions/source/SRPMS',
      'content/eus/rhel10/10.0/ppc64le/sap/debug',
      'content/eus/rhel10/10.0/ppc64le/sap/os',
      'content/eus/rhel10/10.0/ppc64le/sap/source/SRPMS',
      'content/eus/rhel10/10.0/ppc64le/supplementary/debug',
      'content/eus/rhel10/10.0/ppc64le/supplementary/os',
      'content/eus/rhel10/10.0/ppc64le/supplementary/source/SRPMS',
      'content/eus/rhel10/10.0/s390x/appstream/debug',
      'content/eus/rhel10/10.0/s390x/appstream/os',
      'content/eus/rhel10/10.0/s390x/appstream/source/SRPMS',
      'content/eus/rhel10/10.0/s390x/baseos/debug',
      'content/eus/rhel10/10.0/s390x/baseos/os',
      'content/eus/rhel10/10.0/s390x/baseos/source/SRPMS',
      'content/eus/rhel10/10.0/s390x/codeready-builder/debug',
      'content/eus/rhel10/10.0/s390x/codeready-builder/os',
      'content/eus/rhel10/10.0/s390x/codeready-builder/source/SRPMS',
      'content/eus/rhel10/10.0/s390x/highavailability/debug',
      'content/eus/rhel10/10.0/s390x/highavailability/os',
      'content/eus/rhel10/10.0/s390x/highavailability/source/SRPMS',
      'content/eus/rhel10/10.0/s390x/sap/debug',
      'content/eus/rhel10/10.0/s390x/sap/os',
      'content/eus/rhel10/10.0/s390x/sap/source/SRPMS',
      'content/eus/rhel10/10.0/s390x/supplementary/debug',
      'content/eus/rhel10/10.0/s390x/supplementary/os',
      'content/eus/rhel10/10.0/s390x/supplementary/source/SRPMS',
      'content/eus/rhel10/10.0/x86_64/appstream/debug',
      'content/eus/rhel10/10.0/x86_64/appstream/os',
      'content/eus/rhel10/10.0/x86_64/appstream/source/SRPMS',
      'content/eus/rhel10/10.0/x86_64/baseos/debug',
      'content/eus/rhel10/10.0/x86_64/baseos/os',
      'content/eus/rhel10/10.0/x86_64/baseos/source/SRPMS',
      'content/eus/rhel10/10.0/x86_64/codeready-builder/debug',
      'content/eus/rhel10/10.0/x86_64/codeready-builder/os',
      'content/eus/rhel10/10.0/x86_64/codeready-builder/source/SRPMS',
      'content/eus/rhel10/10.0/x86_64/highavailability/debug',
      'content/eus/rhel10/10.0/x86_64/highavailability/os',
      'content/eus/rhel10/10.0/x86_64/highavailability/source/SRPMS',
      'content/eus/rhel10/10.0/x86_64/sap-solutions/debug',
      'content/eus/rhel10/10.0/x86_64/sap-solutions/os',
      'content/eus/rhel10/10.0/x86_64/sap-solutions/source/SRPMS',
      'content/eus/rhel10/10.0/x86_64/sap/debug',
      'content/eus/rhel10/10.0/x86_64/sap/os',
      'content/eus/rhel10/10.0/x86_64/sap/source/SRPMS',
      'content/eus/rhel10/10.0/x86_64/supplementary/debug',
      'content/eus/rhel10/10.0/x86_64/supplementary/os',
      'content/eus/rhel10/10.0/x86_64/supplementary/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'libsoup3-3.6.5-3.el10_0.14', 'sp':'0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libsoup3-devel-3.6.5-3.el10_0.14', 'sp':'0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libsoup3-doc-3.6.5-3.el10_0.14', 'sp':'0', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

var applicable_repo_urls = rhel_determine_applicable_repository_urls(constraints:constraints);
if(applicable_repo_urls == RHEL_REPOS_NO_OVERLAP_MESSAGE) exit(0, RHEL_REPO_NOT_ENABLED);

var os_release = get_one_kb_item('installed_os/local/SSH/0/release');
var os_sp = get_one_kb_item('Host/*/minor_release');

var flag = 0;
var repo_relative_urls;
var reference;
var sp;
var _cpu;
var el_string;
var rpm_spec_vers_cmp;
var epoch;
var allowmaj;
var exists_check;
var cves;
foreach var constraint ( constraints ) {
  # Check that the target release is equal to the affected release
  if (!empty_or_null(constraint['release'])){
    if (constraint['release'] != os_release) continue;
  }
  if (!empty_or_null(constraint['sp'])){
    if (constraint['sp'] != os_sp) continue;
  }

  if (!empty_or_null(constraint['repo_relative_urls'])) repo_relative_urls = constraint['repo_relative_urls'];

  foreach var pkg ( constraint['pkgs'] ) {
    reference = NULL;
    sp = NULL;
    _cpu = NULL;
    el_string = NULL;
    rpm_spec_vers_cmp = NULL;
    epoch = NULL;
    allowmaj = NULL;
    exists_check = NULL;
    cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
    if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
    if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    if (reference &&
        rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&
        (applicable_repo_urls || (!exists_check || rpm_exists(rpm:exists_check))) &&
        rpm_check(sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj, cves:cves)) flag++;
  }
}

if (flag)
{
  var extra = NULL;
  if (isnull(applicable_repo_urls) || !applicable_repo_urls) extra = rpm_report_get() + redhat_report_repo_caveat();
  else extra = rpm_report_get();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : extra
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libsoup3 / libsoup3-devel / libsoup3-doc');
}