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Fedora 45 : php-pecl-mongodb2 (2026-1576c48cce)

🗓️ 12 Sep 2026 00:00:00Reported by TenableType 
nessus
 nessus
🔗 www.tenable.com👁 6 Views

Out-of-bounds read in php-pecl-mongodb2 2.5.2 when building BSON field path (CVE-2026-84968).

Related
Refs
Code
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-84968
7 Sep 202613:15
circl
cve
CVE
CVE-2026-84968
3 Sep 202617:03
cve
cvelist
Cvelist
CVE-2026-84968 Heap out-of-bounds read via corrupt nested BSON in field path error message
3 Sep 202617:03
cvelist
debiancve
Debian CVE
CVE-2026-84968
3 Sep 202617:03
debiancve
euvd
EUVD
EUVD-2026-70644
3 Sep 202617:03
euvd
fedora
Fedora
[SECURITY] Fedora 45 Update: php-pecl-mongodb2-2.5.2-1.fc45
13 Sep 202600:17
fedora
mongodb
MongoDB
Heap out-of-bounds read via corrupt nested BSON in field path error message
3 Sep 202617:03
mongodb
nvd
NVD
CVE-2026-84968
3 Sep 202618:17
nvd
osv
OSV
DEBIAN-CVE-2026-84968
3 Sep 202618:17
osv
osv
OSV
UBUNTU-CVE-2026-84968
4 Sep 202600:00
osv
Rows per page
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##
# The descriptive text and package checks in this plugin were
# extracted from Fedora Security Advisory FEDORA-2026-1576c48cce
#

include('compat.inc');

if (description)
{
  script_id(345459);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/12");

  script_cve_id("CVE-2026-84968");
  script_xref(name:"FEDORA", value:"2026-1576c48cce");

  script_name(english:"Fedora 45 : php-pecl-mongodb2 (2026-1576c48cce)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Fedora host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Fedora 45 host has a package installed that is affected by a vulnerability as referenced in the
FEDORA-2026-1576c48cce advisory.

    ## Version 2.5.2

    - PHPC-2744 Fix out-of-bounds read when building BSON field path by @paulinevos & @GromNaN in #2081
    **CVE-2026-84968**

    ----

    ## Version 2.5.0

    - Honor the server-supplied `baseBackoffMS` on responses labeled `SystemOverloadedError`, using it in
    place of the driver's default base delay when calculating how long to wait before retrying.

    ----

    ## Version 2.4.1

    * PHPC-2742: Bump libmongocrypt to 1.20.2 by @GromNaN in https://github.com/mongodb/mongo-php-
    driver/pull/2051
    * PHPC-2755: Fix test suite failures with PHP 8.6 by @GromNaN in https://github.com/mongodb/mongo-php-
    driver/pull/2056
    * PHPC-2745: Reject null bytes in namespaces and periods in database names [v2.4] by @GromNaN in
    https://github.com/mongodb/mongo-php-driver/pull/2060
    * PHPC-2745: Reject null bytes in namespaces and periods in database names [v1.21] by @GromNaN in
    https://github.com/mongodb/mongo-php-driver/pull/2059


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://bodhi.fedoraproject.org/updates/FEDORA-2026-1576c48cce");
  script_set_attribute(attribute:"solution", value:
"Update the affected php-pecl-mongodb2 package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  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:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/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-2026-84968");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/09/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:45");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:php-pecl-mongodb2");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Fedora 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");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include('rpm2.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) || 'Fedora' >!< os_product) audit(AUDIT_OS_NOT, 'Fedora');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'Fedora');
if (! preg(pattern:"^45([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'Fedora 45', 'Fedora ' + 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) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Fedora', cpu);

var constraints = [
  {
    'release': '45',
    'pkgs': [
      {'reference':'php-pecl-mongodb2-2.5.2-1.fc45', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

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 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;
  }
  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 &&
        ## (no known rpm to check OR known rpm_exists)
        (!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)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'php-pecl-mongodb2');
}

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12 Sep 2026 00:00Current
CVSS 3.15.3
CVSS 46.9
EPSS0.00197
SSVC
6