A memory leak flaw was found in cockpit-ws. The login page handler leaks a heap allocation on every unauthenticated request that carries a CockpitLang cookie, allowing a remote unauthenticated attacker to exhaust memory on the host and cause a denial of service.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-106156 advisory.

    A memory leak flaw was found in cockpit-ws. The login page handler leaks a heap allocation on every     unauthenticated request that carries a CockpitLang cookie, allowing a remote unauthenticated attacker to     exhaust memory on the host and cause a denial of service.

Tenable has extracted the preceding description block directly from the Unity 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 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-edff423bf7 advisory.

    Automatic update for cockpit-367-1.fc43.

    ##### **Changelog for cockpit**

    ```
    * Thu Aug 27 2026 Packit <hello@packit.dev> - 367-1
    - Translation updates

    ```


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 Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-4ca90cfeb9 advisory.

    Automatic update for cockpit-367-1.fc44.

    ##### **Changelog for cockpit**

    ```
    * Thu Aug 27 2026 Packit <hello@packit.dev> - 367-1
    - Translation updates

    ```


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 Debian 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6474 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6474-1                   security@debian.org     https://www.debian.org/security/                       Moritz Muehlenhoff     August 27, 2026                       https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : cockpit     CVE ID         : CVE-2026-4802 CVE-2026-76235

    Two security vulnerabilities were discovered in Cockpit, a web console     for Linux servers, which could result in the execution of arbitrary code     or denial of service.

    For the stable distribution (trixie), these problems have been fixed in     version 337-1+deb13u2.

    We recommend that you upgrade your cockpit packages.

    For the detailed security status of cockpit please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/cockpit

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

Tenable has extracted the preceding description block directly from the Debian 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 memory leak flaw was found in cockpit-ws. The login page handler leaks a heap allocation on every     unauthenticated request that carries a CockpitLang cookie, allowing a remote unauthenticated attacker to     exhaust memory on the host and cause a denial of service. (CVE-2026-76235)

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

ID	Name	Product	Family	Type	Severity
342913	Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: cockpit (UTSA-2026-106156)	Nessus	Unity Linux Local Security Checks	Local	high
342774	Fedora 43 : cockpit (2026-edff423bf7)	Nessus	Fedora Local Security Checks	Local	high
342274	Fedora 44 : cockpit (2026-4ca90cfeb9)	Nessus	Fedora Local Security Checks	Local	high
341053	Debian dsa-6474 : cockpit - security update	Nessus	Debian Local Security Checks	Local	high
338140	Linux Distros Unpatched Vulnerability : CVE-2026-76235	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-76235

high

Tenable Plugins

high

high

high

high

high