Copyright © 2012 Red Hat, Inc. All rights reserved. Important 2026-05-11T12:34:26 cockpit: Cockpit: Arbitrary command execution via crafted links in system logs UI 8.0 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H CWE-78

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.

An Important arbitrary command execution flaw exists in Cockpit's system logs UI. This vulnerability allows a remote attacker to execute arbitrary commands on the host by exploiting unsanitized user-controlled parameters within crafted links. This impacts Red Hat Enterprise Linux systems where Cockpit is installed and accessible. Red Hat would like to thank Gabriel Rodrigues (HAKAI) for reporting this issue. 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 Red Hat Enterprise Linux 10 2026-05-28T00:00:00Z RHSA-2026:21676 cockpit-0:356.2-1.el10_2 Red Hat Enterprise Linux 10.0 Extended Update Support 2026-05-27T00:00:00Z RHSA-2026:21390 cockpit-0:334.2-1.el10_0 Red Hat Enterprise Linux 8 2026-05-28T00:00:00Z RHSA-2026:21700 cockpit-0:310.8-1.el8_10 Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 2026-05-27T00:00:00Z RHSA-2026:21516 cockpit-0:264.3-1.el8_6 Red Hat Enterprise Linux 8.6 Telecommunications Update Service 2026-05-27T00:00:00Z RHSA-2026:21516 cockpit-0:264.3-1.el8_6 Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 2026-05-27T00:00:00Z RHSA-2026:21516 cockpit-0:264.3-1.el8_6 Red Hat Enterprise Linux 8.8 Telecommunications Update Service 2026-05-27T00:00:00Z RHSA-2026:21515 cockpit-0:286.2-1.el8_8 Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 2026-05-27T00:00:00Z RHSA-2026:21515 cockpit-0:286.2-1.el8_8 Red Hat Enterprise Linux 9 2026-05-27T00:00:00Z RHSA-2026:21468 cockpit-0:356.2-1.el9_8 Red Hat Enterprise Linux 9 2026-05-27T00:00:00Z RHSA-2026:21468 cockpit-0:356.2-1.el9_8 Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions 2026-05-27T00:00:00Z RHSA-2026:21395 cockpit-0:264.3-1.el9_0 Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 2026-05-27T00:00:00Z RHSA-2026:21394 cockpit-0:286.3-1.el9_2 Red Hat Enterprise Linux 9.4 Extended Update Support 2026-05-28T00:00:00Z RHSA-2026:21647 cockpit-0:311.3-1.el9_4 Red Hat Enterprise Linux 9.6 Extended Update Support 2026-05-28T00:00:00Z RHSA-2026:21392 cockpit-0:334.3-1.el9_6 Red Hat Enterprise Linux 7 Not affected cockpit https://www.cve.org/CVERecord?id=CVE-2026-4802 https://nvd.nist.gov/vuln/detail/CVE-2026-4802 https://github.com/cockpit-project/cockpit/blob/e204cd130/pkg/systemd/logsJournal.jsx#L206-L210 True