Cockpit-HQ Cockpit System Logs User Interface os command injection

Summaryinfo

A vulnerability identified as critical has been detected in Cockpit-HQ Cockpit. Impacted is an unknown function of the component System Logs User Interface. The manipulation leads to os command injection. This vulnerability is traded as CVE-2026-4802. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Cockpit-HQ Cockpit (affected version not known). It has been rated as critical. This issue affects some unknown functionality of the component System Logs User Interface. The manipulation with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at access.redhat.com. The identification of this vulnerability is CVE-2026-4802 since 03/25/2026. The exploitation is known to be easy. The attack may be initiated remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/14/2026). MITRE ATT&CK project uses the attack technique T1202 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 316474 (Fedora 44 : cockpit (2026-ac9d9c87c8)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (316474) and CERT Bund (WID-SEC-2026-1699). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

• SUSE Linux
• Oracle Linux
• RESF Rocky Linux
• Red Hat Enterprise Linux

Productinfo

Vendor

• Cockpit-HQ

Name

• Cockpit

CPE 2.3info

• 🔒

CPE 2.2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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