CVE-2026-44514

Kubetail: Cross-Site WebSocket Hijacking allows attacker to read Kubernetes logs from authenticated users

State: Published
Severity: 6.5 Medium
Published: May 14, 2026
Updated: May 16, 2026
Reserved: May 6, 2026

Description

Kubetail is a real-time logging dashboard for Kubernetes. Prior to 0.14.0, 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). This vulnerability is fixed in 0.14.0.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N	GitHub_M

Weaknesses

CWE-1385 Missing Origin Validation in WebSockets

Affected Products

Product	Versions
kubetailkubetail-org	< 0.14.0Affected
github.com/kubetail-org/kubetail/modules/clikubetail-org	< 0.16.0Affected
github.com/kubetail-org/kubetail/modules/dashboardkubetail-org	< 0.14.0Affected

References

https://github.com/kubetail-org/kubetail/security/advisories/GHSA-v8j7-hp7c-738f

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