External risk intelligence

Dockwatch OS Command Injection Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.2)

CVE-2026-58455

Dockwatch is a web-based application designed for monitoring and managing Docker environments. Such management interfaces are commonly deployed as web applications accessible over the network for administrator convenience, making them frequently exposed to the network or internet in typical deployment scenarios.

OS Command Injection

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

This advisory concerns a critical vulnerability in Dockwatch, a tool used for managing Docker environments. The flaw, if exploited, could allow remote attackers to execute arbitrary commands on the affected systems without authentication, potentially leading to a full compromise. The main concern is confirming the relevance and exposure of this technology within your environment.

Unauthenticated attackers can run commands on systems.
It enables full host compromise via web interface.
Confirm if Dockwatch is deployed in your environment.

Attack Path

How an attacker could exploit the issue

An attacker can remotely execute arbitrary commands on the host by exploiting a missing exit in the authentication flow and unsanitized input in the composePath parameter. This allows them to bypass authentication, inject malicious commands, and potentially gain full control of the system, especially when the Docker socket is mounted.

No authentication required.
POST to composePull action.
Full host compromise.

Live Threat

Current exploitation, exposure, and threat context

A missing exit function after an authentication redirect, combined with unsanitized input, allows remote attackers to inject arbitrary shell commands. This can lead to full host compromise, especially when the Docker socket is mounted in a standard deployment.

Arbitrary shell commands could be executed.
Input is unsanitized and commands are passed to `shell_exec()`.
Full host compromise is a realistic consequence.

Operational Fix

Recommended remediation, mitigation, and detection steps

In real-world deployments, the platform or infrastructure team responsible for the Docker environment and the application owners of Dockwatch are likely accountable for addressing this vulnerability. The initial practical step involves identifying all Dockwatch instances, confirming their network exposure and business criticality, and then engaging the responsible owners to plan remediation.

Platform/App teams own the issue.
Verify network exposure and criticality.
Plan coordinated remediation or containment.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

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Frequently asked questions

What is Dockwatch?

Dockwatch is a web-based application designed to help users monitor and manage Docker environments. It provides a visual interface for tasks like tracking container health, viewing logs, and managing container deployments, making it a common utility for teams working with containerized infrastructure.

What is the weakness in CVE-2026-58455?

This CVE involves OS command injection, categorized as CWE-78. Essentially, the software fails to properly filter user-provided input before passing it to system shell commands. Because of a separate logic error where the program continues running even after an authentication check fails, an attacker can supply malicious commands that the system executes with the same privileges as the Dockwatch application.

How do attackers trigger this command injection?

An attacker triggers this by sending a specific POST request to the composePull action. The vulnerability requires the application to incorrectly process a session flag that bypasses authentication. Note that simply visiting the login page or using standard interface features does not inherently trigger this; it specifically requires crafting a request that takes advantage of the missing exit() function in the authentication flow.

Do I need to worry if my Dockwatch is internal?

Yes. Halo Surface Signal indicates that while these interfaces are often deployed for administrative convenience, they are frequently accessible over networks. Even if not directly on the public internet, any internal user or compromised machine on your network could reach the interface. Because the vulnerability allows full host compromise—particularly due to the common practice of mounting the Docker socket—it poses a high risk regardless of network placement.

How should I respond to this threat?

Begin by auditing your environment to locate all running instances of Dockwatch. Once identified, evaluate whether these instances need to be network-accessible. Coordinate with your platform and application teams to restrict access to these tools immediately, and work toward a managed update or containment plan to mitigate the risk of unauthorized system command execution.

References

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.