---
id: CVE-2026-4802
title: >-
  Cockpit: cockpit: arbitrary command execution via crafted links in system logs
  ui
summary: >-
  A flaw was found in Cockpit. This vulnerability allows a remote attacker to
  achieve arbitrary command execution on the host by exploiting unsanitized
  user-controlled parameters within crafted links in the system logs user
  interface (UI).…
severity: high
cvss: 8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-78
vendor: Red Hat
product: cockpit
affected:
  - cockpit (all versions)
  - cockpit (all versions)
  - cockpit (all versions)
  - cockpit (all versions)
  - cockpit (all versions)
  - cockpit (all versions)
  - cockpit (all versions)
  - cockpit (all versions)
  - cockpit (all versions)
  - cockpit (all versions)
  - cockpit (all versions)
  - cockpit (all versions)
  - cockpit (all versions)
  - cockpit (all versions)
  - cockpit
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-05-11T00:00:00+00:00'
exploitAvailable: true
published: '2026-05-11'
updated: '2026-11-04'
sourceUpdated: '2026-11-04T22:41:51.106Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-4802'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2026:21390'
    label: 'RHSA-2026:21390'
  - url: 'https://access.redhat.com/errata/RHSA-2026:21392'
    label: 'RHSA-2026:21392'
  - url: 'https://access.redhat.com/errata/RHSA-2026:21394'
    label: 'RHSA-2026:21394'
  - url: 'https://access.redhat.com/errata/RHSA-2026:21395'
    label: 'RHSA-2026:21395'
  - url: 'https://access.redhat.com/errata/RHSA-2026:21468'
    label: 'RHSA-2026:21468'
  - url: 'https://access.redhat.com/errata/RHSA-2026:21515'
    label: 'RHSA-2026:21515'
  - url: 'https://access.redhat.com/errata/RHSA-2026:21516'
    label: 'RHSA-2026:21516'
  - url: 'https://access.redhat.com/errata/RHSA-2026:21647'
    label: 'RHSA-2026:21647'
  - url: 'https://access.redhat.com/errata/RHSA-2026:21676'
    label: 'RHSA-2026:21676'
  - url: 'https://access.redhat.com/errata/RHSA-2026:21700'
    label: 'RHSA-2026:21700'
  - url: 'https://access.redhat.com/security/cve/CVE-2026-4802'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2451155'
    label: RHBZ#2451155
  - url: >-
      https://github.com/cockpit-project/cockpit/blob/e204cd130/pkg/systemd/logsJournal.jsx#L206-L210
tags:
  - cve.org
  - exploit-available
epss: 0.01016
epssPercentile: 0.63453
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/hakaioffsec/CVE-2026-4802'
  checkedAt: '2026-11-06T17:11:51.271Z'
ingestedAt: '2026-11-05T21:36:00.656Z'
---

## Overview

A flaw was found in Cockpit. This vulnerability allows a remote attacker to achieve arbitrary command execution on the host by exploiting unsanitized user-controlled parameters within crafted links in the system logs user interface (UI). An attacker can inject shell metacharacters and command substitutions into these parameters, leading to the execution of arbitrary shell commands on the affected system. This could result in a complete system compromise.

## Affected

- `cockpit (all versions)`
- `cockpit (all versions)`
- `cockpit (all versions)`
- `cockpit (all versions)`
- `cockpit (all versions)`
- `cockpit (all versions)`
- `cockpit (all versions)`
- `cockpit (all versions)`
- `cockpit (all versions)`
- `cockpit (all versions)`
- `cockpit (all versions)`
- `cockpit (all versions)`
- `cockpit (all versions)`
- `cockpit (all versions)`
- `cockpit`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

### Workarounds

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Operational risk reduction until fixes are available: restrict access to Cockpit to trusted networks/users only, and avoid opening untrusted crafted Cockpit URLs