Impact: The fix for CVE-2021-23337 (https://github.com/advisories/GHSA-35jh-r3h4-6jhm) added validation for the variable option in _.template but did not apply the same validation to options.imports key names. Both paths flow into the same Function() constructor sink. When an application passes untrusted input as options.imports key names, an attacker can inject default-parameter expressions that execute arbitrary code at template compilation time. Additionally, _.template uses assignInWith to merge imports, which enumerates inherited properties via for..in. If Object.prototype has been polluted by any other vector, the polluted keys are copied into the imports object and passed to Function(). Patches: Users should upgrade to version 4.18.0. Workarounds: Do not pass untrusted input as key names in options.imports. Only use developer-controlled, static key names.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-6599e30e04 advisory.

    33.0.3 Release

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

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-cb5661d883 advisory.

    33.0.3 Release

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

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-2fed8dd674 advisory.

    33.0.3 Release

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

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote MiracleLinux 9 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2026-515:05 advisory.

    * lodash: lodash: Arbitrary code execution via untrusted input in template imports (CVE-2026-4800)

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

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 9 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:10710 advisory.

    * lodash: lodash: Arbitrary code execution via untrusted input in template imports (CVE-2026-4800)

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

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 10 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:10713 advisory.

    * lodash: lodash: Arbitrary code execution via untrusted input in template imports (CVE-2026-4800)

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

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:11516 advisory.

    The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities.

    Security Fix(es):

    * lodash: lodash: Arbitrary code execution via untrusted input in template imports (CVE-2026-4800)

    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 this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:11493 advisory.

    The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities.

    Security Fix(es):

    * tornado-python: Tornado: Denial of Service via large multipart bodies (CVE-2026-31958)

    * lodash: lodash: Arbitrary code execution via untrusted input in template imports (CVE-2026-4800)

    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.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:11495 advisory.

    The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities.

    Security Fix(es):

    * tornado-python: Tornado: Denial of Service via large multipart bodies (CVE-2026-31958)

    * lodash: lodash: Arbitrary code execution via untrusted input in template imports (CVE-2026-4800)

    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.

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:11470 advisory.

    The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities.

    Security Fix(es):

    * lodash: lodash: Arbitrary code execution via untrusted input in template imports (CVE-2026-4800)

    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 this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:11469 advisory.

    The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities.

    Security Fix(es):

    * lodash: lodash: Arbitrary code execution via untrusted input in template imports (CVE-2026-4800)

    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 this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:11454 advisory.

    The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities.

    Security Fix(es):

    * tornado-python: Tornado: Denial of Service via large multipart bodies (CVE-2026-31958)

    * lodash: lodash: Arbitrary code execution via untrusted input in template imports (CVE-2026-4800)

    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.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:11471 advisory.

    The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities.

    Security Fix(es):

    * lodash: lodash: Arbitrary code execution via untrusted input in template imports (CVE-2026-4800)

    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 this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:11494 advisory.

    The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities.

    Security Fix(es):

    * tornado-python: Tornado: Denial of Service via large multipart bodies (CVE-2026-31958)

    * lodash: lodash: Arbitrary code execution via untrusted input in template imports (CVE-2026-4800)

    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.

The remote Oracle Linux 10 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-10713 advisory.

    [0.12.1-1.el10_1.3]
    - Fixed CVE-2026-4800 by updating HA Cluster Management add-on to 0.1.23.2       Resolves: RHEL-164062

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

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-8d34161d90 advisory.

    Refresh vendor bundle, fixes CVE-2026-4800.

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.

The remote RockyLinux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:10710 advisory.

    * lodash: lodash: Arbitrary code execution via untrusted input in template imports (CVE-2026-4800)

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

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-10710 advisory.

    [0.11.10-1.el9_7.3]
    - Fixed CVE-2026-4800 by updating pcs-web-ui to 0.1.23.2       Resolves: RHEL-164191

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

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:10710 advisory.

    The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities.

    Security Fix(es):

    * lodash: lodash: Arbitrary code execution via untrusted input in template imports (CVE-2026-4800)

    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 this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:10713 advisory.

    The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities.

    Security Fix(es):

    * lodash: lodash: Arbitrary code execution via untrusted input in template imports (CVE-2026-4800)

    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 this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-34c2bf6df4 advisory.

    Update axios to 1.15.0, fixes CVE-2026-40175 and CVE-2025-62718.

    ----

    Update to pgadmin4-9.14.

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

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-e9ecdd44c4 advisory.

    Update axios to 1.15.0, fixes CVE-2026-40175 and CVE-2025-62718.

    ----

    Update to pgadmin4-9.14.

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

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-b4633cbe23 advisory.

    Update axios to 1.15.0, fixes CVE-2026-40175 and CVE-2025-62718.

    ----

    Update to pgadmin4-9.14.

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

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-085abeea02 advisory.

    Refresh vendor bundle, fixes CVE-2026-4800.

    ----

    Update vendor bundle.

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

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 42 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-7a6943e57d advisory.

    Refresh vendor bundle, fixes CVE-2026-4800.

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.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Impact: The fix for CVE-2021-23337 (https://github.com/advisories/GHSA-35jh-r3h4-6jhm) added validation     for the variable option in _.template but did not apply the same validation to options.imports key names.
    Both paths flow into the same Function() constructor sink. When an application passes untrusted input as     options.imports key names, an attacker can inject default-parameter expressions that execute arbitrary     code at template compilation time. Additionally, _.template uses assignInWith to merge imports, which     enumerates inherited properties via for..in. If Object.prototype has been polluted by any other vector,     the polluted keys are copied into the imports object and passed to Function(). Patches: Users should     upgrade to version 4.18.0. Workarounds: Do not pass untrusted input as key names in options.imports. Only     use developer-controlled, static key names. (CVE-2026-4800)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
313733	Fedora 43 : nextcloud (2026-6599e30e04)	Nessus	Fedora Local Security Checks	medium
313662	Fedora 44 : nextcloud (2026-cb5661d883)	Nessus	Fedora Local Security Checks	medium
313661	Fedora 42 : nextcloud (2026-2fed8dd674)	Nessus	Fedora Local Security Checks	medium
311177	MiracleLinux 9 : pcs-0.11.10-1.el9_7.3.ML.1 (AXSA:2026-515:05)	Nessus	Miracle Linux Local Security Checks	critical
311085	AlmaLinux 9 : pcs (ALSA-2026:10710)	Nessus	Alma Linux Local Security Checks	critical
311076	AlmaLinux 10 : pcs (ALSA-2026:10713)	Nessus	Alma Linux Local Security Checks	critical
310979	RHEL 9 : pcs (RHSA-2026:11516)	Nessus	Red Hat Local Security Checks	critical
310978	RHEL 8 : pcs (RHSA-2026:11493)	Nessus	Red Hat Local Security Checks	high
310977	RHEL 8 : pcs (RHSA-2026:11495)	Nessus	Red Hat Local Security Checks	high
310973	RHEL 10 : pcs (RHSA-2026:11470)	Nessus	Red Hat Local Security Checks	critical
310972	RHEL 9 : pcs (RHSA-2026:11469)	Nessus	Red Hat Local Security Checks	critical
310914	RHEL 9 : pcs (RHSA-2026:11454)	Nessus	Red Hat Local Security Checks	high
310880	RHEL 9 : pcs (RHSA-2026:11471)	Nessus	Red Hat Local Security Checks	critical
310862	RHEL 8 : pcs (RHSA-2026:11494)	Nessus	Red Hat Local Security Checks	high
310828	Oracle Linux 10 : pcs (ELSA-2026-10713)	Nessus	Oracle Linux Local Security Checks	critical
310684	Fedora 44 : yarnpkg (2026-8d34161d90)	Nessus	Fedora Local Security Checks	critical
310567	RockyLinux 9 : pcs (RLSA-2026:10710)	Nessus	Rocky Linux Local Security Checks	critical
310454	Oracle Linux 9 : pcs (ELSA-2026-10710)	Nessus	Oracle Linux Local Security Checks	critical
310414	RHEL 9 : pcs (RHSA-2026:10710)	Nessus	Red Hat Local Security Checks	critical
310400	RHEL 10 : pcs (RHSA-2026:10713)	Nessus	Red Hat Local Security Checks	critical
310218	Fedora 44 : pgadmin4 (2026-34c2bf6df4)	Nessus	Fedora Local Security Checks	medium
309861	Fedora 43 : pgadmin4 (2026-e9ecdd44c4)	Nessus	Fedora Local Security Checks	medium
309859	Fedora 42 : pgadmin4 (2026-b4633cbe23)	Nessus	Fedora Local Security Checks	medium
306054	Fedora 43 : yarnpkg (2026-085abeea02)	Nessus	Fedora Local Security Checks	critical
306046	Fedora 42 : yarnpkg (2026-7a6943e57d)	Nessus	Fedora Local Security Checks	critical
304625	Linux Distros Unpatched Vulnerability : CVE-2026-4800	Nessus	Misc.	critical

Detections

Analytics

CVE-2026-4800

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Tenable Plugins

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