CVE-2026-44514

Kubetail's dashboard exposes WebSocket endpoints that did not adequately validate the Origin header on connection upgrade. A malicious web page visited by a user with an active Kubetail session could open a WebSocket to the user's dashboard and read their Kubernetes logs in real time. This is a Cross-Site WebSocket Hijacking (CSWSH) vulnerability and affects both the desktop deployment (default http://localhost:7500) and cluster deployments (typically behind an Ingress with HTTP basic auth).

Affected versions

Confirmed in Google Chrome. Microsoft Edge is presumed affected as it shares Chromium's WebSocket implementation, but was not directly tested.

Preconditions for exploitation

1. The victim has an active authenticated Kubetail session (desktop dashboard running, or browser holding valid credentials for a cluster deployment).
2. The victim visits a web page controlled by the attacker in the same browser.
3. The attacker knows or can guess the dashboard URL (trivial for desktop; cluster deployments require knowing the Ingress hostname).

Workarounds

If users cannot upgrade immediately:

• Desktop: Stop the dashboard (kubetail CLI process) when not actively in use. Avoid visiting untrusted sites in the same browser profile while the dashboard is running.
• Cluster: Restrict Ingress access to a VPN, bastion, or office network. Add a stronger outer authentication layer (e.g. OAuth proxy) in front of basic auth. Consider browser profile isolation for cluster admins.

An attacker who can convince an authenticated Kubetail user to visit a page they control can:

• Establish a WebSocket connection to the victim's dashboard from the attacker's origin
• Stream container logs the victim has access to via the Kubernetes API
• Exfiltrate the contents to an attacker-controlled server

The attacker gains read-only access to logs, no write or destructive operations are exposed. However, container logs frequently contain credentials accidentally written by application code, bearer tokens, internal hostnames, customer PII, and other secrets, so the practical impact of read access can be significant.

The desktop deployment is particularly exposed because the dashboard is reachable at a predictable localhost URL, requires no network reachability from the attacker, and the browser will attach ambient credentials to the WebSocket handshake.
For cluster deployments fronted by HTTP basic auth, the browser's automatic re-sending of basic-auth credentials on the WebSocket upgrade request enables the same attack against the configured dashboard origin.

CVE-2026-44514 has a CVSS score of 6.5 (Medium). The vector is network-reachable, no privileges required, and user interaction required. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (0.14.0, 0.16.0); upgrading removes the vulnerable code path.

Kodem intelligence

Upgrade to:

• Kubetail Dashboard 0.14.0 or later
• Kubetail Helm Chart 0.23.0 or later
• Kubetail CLI 0.16.0 or later

1. What is CVE-2026-44514? CVE-2026-44514 is a medium-severity security vulnerability in github.com/kubetail-org/kubetail/modules/dashboard (go), affecting versions < 0.14.0. It is fixed in 0.14.0, 0.16.0.
2. How severe is CVE-2026-44514? CVE-2026-44514 has a CVSS score of 6.5 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which packages are affected by CVE-2026-44514?
   • github.com/kubetail-org/kubetail/modules/dashboard (go) (versions < 0.14.0)
   • github.com/kubetail-org/kubetail/modules/cli (go) (versions < 0.16.0)
4. Is there a fix for CVE-2026-44514? Yes. CVE-2026-44514 is fixed in 0.14.0, 0.16.0. Upgrade to this version or later.
5. Is CVE-2026-44514 exploitable, and should I be worried? Whether CVE-2026-44514 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether CVE-2026-44514 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix CVE-2026-44514?
   • Upgrade github.com/kubetail-org/kubetail/modules/dashboard to 0.14.0 or later
   • Upgrade github.com/kubetail-org/kubetail/modules/cli to 0.16.0 or later