The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:99599 advisory.

    Cockpit enables users to administer GNU/Linux servers using a web browser. It offers network     configuration, log inspection, diagnostic reports, SELinux troubleshooting, interactive command-line     sessions, and more.

    Security Fix(es):

    * cockpit: Cockpit: Local privilege escalation via insecure symlink handling in public key addition helper     (CVE-2026-91151)

    * cockpit: cockpit: Denial of Service via unbounded fragmented WebSocket messages (CVE-2026-91150)

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

  - A flaw was found in Cockpit. This vulnerability allows a remote attacker, without prior authentication, to     send specially crafted fragmented WebSocket messages. These messages accumulate without a total-size     limit, leading to unbounded memory exhaustion and a denial of service in the `cockpit-ws` service.
    (CVE-2026-91150)

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

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:99600 advisory.

    Cockpit enables users to administer GNU/Linux servers using a web browser. It offers network     configuration, log inspection, diagnostic reports, SELinux troubleshooting, interactive command-line     sessions, and more.

    Security Fix(es):

    * cockpit: Cockpit: Local privilege escalation via insecure symlink handling in public key addition helper     (CVE-2026-91151)

    * cockpit: cockpit: Denial of Service via unbounded fragmented WebSocket messages (CVE-2026-91150)

    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 multiple vulnerabilities as referenced in the RHSA-2026:99601 advisory.

    Cockpit enables users to administer GNU/Linux servers using a web browser. It offers network     configuration, log inspection, diagnostic reports, SELinux troubleshooting, interactive command-line     sessions, and more.

    Security Fix(es):

    * cockpit: Cockpit: Local privilege escalation via insecure symlink handling in public key addition helper     (CVE-2026-91151)

    * cockpit: cockpit: Denial of Service via unbounded fragmented WebSocket messages (CVE-2026-91150)

    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 multiple vulnerabilities as referenced in the RHSA-2026:99602 advisory.

    Cockpit enables users to administer GNU/Linux servers using a web browser. It offers network     configuration, log inspection, diagnostic reports, SELinux troubleshooting, interactive command-line     sessions, and more.

    Security Fix(es):

    * cockpit: Cockpit: Local privilege escalation via insecure symlink handling in public key addition helper     (CVE-2026-91151)

    * cockpit: cockpit: Denial of Service via unbounded fragmented WebSocket messages (CVE-2026-91150)

    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-2026:99603 advisory.

    Cockpit enables users to administer GNU/Linux servers using a web browser. It offers network     configuration, log inspection, diagnostic reports, SELinux troubleshooting, interactive command-line     sessions, and more.

    Security Fix(es):

    * cockpit: Cockpit: Local privilege escalation via insecure symlink handling in public key addition helper     (CVE-2026-91151)

    * cockpit: cockpit: Denial of Service via unbounded fragmented WebSocket messages (CVE-2026-91150)

    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.

ID	名前	製品	ファミリー	公開日	更新日	深刻度
379753	RHEL 10 : cockpit (RHSA-2026:99599)	Nessus	Red Hat Local Security Checks	2026/11/12	2026/11/12	high
378232	Linux Distros Unpatched Vulnerability : CVE-2026-91150	Nessus	Misc.	2026/11/10	2026/11/12	high
379614	RHEL 10 : cockpit (RHSA-2026:99600)	Nessus	Red Hat Local Security Checks	2026/11/12	2026/11/12	high
379761	RHEL 9 : cockpit (RHSA-2026:99601)	Nessus	Red Hat Local Security Checks	2026/11/12	2026/11/12	high
379608	RHEL 9 : cockpit (RHSA-2026:99602)	Nessus	Red Hat Local Security Checks	2026/11/12	2026/11/12	high
379616	RHEL 8 : cockpit (RHSA-2026:99603)	Nessus	Red Hat Local Security Checks	2026/11/12	2026/11/12	high

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