Cockpit: cockpit: arbitrary command execution via crafted links in system logs ui

Description

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.

Timeline

Scores

EPSS (exploitation in 30 days)

1.0% · top 36% of all CVEs (11 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.0.

Affected products

• Red Hat · Red Hat Enterprise Linux 10

  • unaffected 0:356.2-1.el10_2 – < *

• Red Hat · Red Hat Enterprise Linux 10.0 Extended Update Support

  • unaffected 0:334.2-1.el10_0 – < *

• Red Hat · Red Hat Enterprise Linux 8

  • unaffected 0:310.8-1.el8_10 – < *

• Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support

  • unaffected 0:264.3-1.el8_6 – < *

• Red Hat · Red Hat Enterprise Linux 8.6 Telecommunications Update Service

  • unaffected 0:264.3-1.el8_6 – < *

• Red Hat · Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions

  • unaffected 0:264.3-1.el8_6 – < *

• Red Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update Service

  • unaffected 0:286.2-1.el8_8 – < *

• Red Hat · Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions

  • unaffected 0:286.2-1.el8_8 – < *

• Red Hat · Red Hat Enterprise Linux 9

  • unaffected 0:356.2-1.el9_8 – < *

• Red Hat · Red Hat Enterprise Linux 9

  • unaffected 0:356.2-1.el9_8 – < *

• Red Hat · Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

  • unaffected 0:264.3-1.el9_0 – < *

• Red Hat · Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

  • unaffected 0:286.3-1.el9_2 – < *

• Red Hat · Red Hat Enterprise Linux 9.4 Extended Update Support

  • unaffected 0:311.3-1.el9_4 – < *

• Red Hat · Red Hat Enterprise Linux 9.6 Extended Update Support

  • unaffected 0:334.3-1.el9_6 – < *

• Red Hat · Red Hat Enterprise Linux 7

  All versions: unaffected

What to do

Workaround: 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

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• EUVD EUVD-2026-29051 (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2026-4802](https://cveledger.app/badge/CVE-2026-4802.svg)](https://cveledger.app/cve/CVE-2026-4802)

Record last updated 4 Nov 2026, 22:41 UTC.