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Fencer Vulns
medium 6.5

CVE-2026-44514 json

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

published 2026-05-07 6 mo ago modified 2026-10-26 14 d ago also GHSA-v8j7-hp7c-738f , GO-2026-5656 , EUVD-2026-30331

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 6%
public exploits
0
none known

Summary

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.

Patch / fix

  • go github.com/kubetail-org/kubetail/modules/dashboard 0.14.0
  • go github.com/kubetail-org/kubetail/modules/cli 0.16.0
  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1

opensuse advisories openSUSE-SU-2026:21483-1

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
5 mo ago

Exploit prediction

0.17% chance of exploitation in the next 30 days, higher than 6% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
GitHub 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
go github.com/kubetail-org/kubetail/modules/dashboard
<0.14.0
all versions
0.14.0
go github.com/kubetail-org/kubetail/modules/cli
<0.16.0
all versions
0.16.0

Affected products

  • kubetail-org kubetail
  • kubetail-org github.com/kubetail-org/kubetail/modules/cli
  • kubetail-org github.com/kubetail-org/kubetail/modules/dashboard

Classification

Weakness
  • CWE-1385 Missing Origin Validation in WebSockets

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.