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

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Summary

CVECVE-2026-44514
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-14 17:16:23 UTC
Updated2026-05-14 18:31:45 UTC
DescriptionKubetail 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.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Problem Types: CWE-1385 | CWE-1385 CWE-1385: Missing Origin Validation in WebSockets

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
3.1CNADECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Kubetail-org Kubetail affected < 0.14.0 Not specified
CNA Kubetail-org Github.com/kubetail-org/kubetail/modules/cli affected < 0.16.0 Not specified
CNA Kubetail-org Github.com/kubetail-org/kubetail/modules/dashboard affected < 0.14.0 Not specified

References

ReferenceSourceLinkTags
github.com/kubetail-org/kubetail/security/advisories/GHSA-v8j7-hp7c-738f [email protected] github.com
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