Detections
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SCA: security update for k8s.io/kubernetes (GHSA-35c7-w35f-xwgh)

medium Tenable Cloud Security Plugin ID 409297

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Kube-proxy on Windows can unintentionally forward traffic to local processes listening on the same port
 (“spec.ports[*].port”) as a LoadBalancer Service when the LoadBalancer controller does not set the
 “status.loadBalancer.ingress[].ip” field. Clusters where the LoadBalancer controller sets the
 “status.loadBalancer.ingress[].ip” field are unaffected. (CVE-2021-25736)

Solution

Update the k8s.io/kubernetes library and its related packages to version 1.21.0 or later.

See Also

https://github.com/advisories/GHSA-35c7-w35f-xwgh

Plugin Details

Severity: Medium

ID: 409297

Version: Revision 1.13

Type: Local

Family: SCA Checks

Published: 1/23/2025

Updated: 7/6/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3.3

Percentile: 51.16

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.6

Vector: CVSS2#AV:N/AC:H/Au:S/C:C/I:N/A:N

CVSS Score Source: CVE-2021-25736

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.5

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/30/2023

Vulnerability Publication Date: 10/30/2023

Reference Information

CVE: CVE-2021-25736