Detections
Analytics

Linux Distros Unpatched Vulnerability : CVE-2026-76235

high Nessus Plugin ID 338140

Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

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.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2026-76235

Plugin Details

Severity: High

ID: 338140

File Name: unpatched_CVE_2026_76235.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Misc.

Published: 8/19/2026

Updated: 8/19/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.3

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2026-76235

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C

Vulnerability Information

CPE: cpe:/o:centos:centos:7, cpe:/o:centos:centos:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:centos:centos:cockpit-bridge, p-cpe:/a:centos:centos:cockpit-doc, p-cpe:/a:centos:centos:cockpit-machines-ovirt, p-cpe:/a:centos:centos:cockpit-packagekit, p-cpe:/a:centos:centos:cockpit-pcp, p-cpe:/a:centos:centos:cockpit-storaged, p-cpe:/a:centos:centos:cockpit-system, p-cpe:/a:centos:centos:cockpit-ws-selinux, p-cpe:/a:centos:centos:cockpit-ws, p-cpe:/a:centos:centos:cockpit, p-cpe:/a:redhat:enterprise_linux:cockpit-bridge, p-cpe:/a:redhat:enterprise_linux:cockpit-doc, p-cpe:/a:redhat:enterprise_linux:cockpit-machines-ovirt, p-cpe:/a:redhat:enterprise_linux:cockpit-packagekit, p-cpe:/a:redhat:enterprise_linux:cockpit-pcp, p-cpe:/a:redhat:enterprise_linux:cockpit-storaged, p-cpe:/a:redhat:enterprise_linux:cockpit-system, p-cpe:/a:redhat:enterprise_linux:cockpit-ws-selinux, p-cpe:/a:redhat:enterprise_linux:cockpit-ws, p-cpe:/a:redhat:enterprise_linux:cockpit

Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 8/19/2026

Reference Information

CVE: CVE-2026-76235