Detections
Analytics

SCA: security update for @backstage/plugin-kubernetes-backend (GHSA-p795-mqf2-36mf)

medium Tenable Self-Hosted Container Security Plugin ID 473668

Description

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

 - Backstage is an open framework for building developer portals. Prior to 0.21.9, the @backstage/plugin-
 kubernetes-backend package is affected by sensitive information disclosure in kubernetes resource queries.
 An authenticated user holding the standard Kubernetes resource read permission could retrieve sensitive
 values that the Kubernetes plugin is designed to mask, potentially exposing credentials and other
 confidential material held in the connected clusters. Exposure is limited to resources that the Backstage
 service account is permitted to read and that match the targeted catalog entity's namespace and label
 selector. Deployments whose cluster credentials do not grant read access to these resources are
 unaffected. This issue is fixed in version 0.21.9. (CVE-2026-106561)

Solution

Update the @backstage/plugin-kubernetes-backend library and its related packages to version 0.21.9 or later.

See Also

https://github.com/advisories/GHSA-p795-mqf2-36mf

Plugin Details

Severity: Medium

ID: 473668

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/7/2026

Updated: 10/7/2026

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS Score Source: CVE-2026-106561

CVSS v3

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.4

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/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: 10/7/2026

Vulnerability Publication Date: 10/7/2026

Reference Information

CVE: CVE-2026-106561