Detections
Analytics

SCA: security update for @backstage/plugin-techdocs-backend (GHSA-7mfx-xg57-53c9)

medium Tenable Self-Hosted Container Security Plugin ID 473660

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 2.2.4, the @backstage/plugin-
 techdocs-backend package is affected by improper input validation in techdocs static content requests.
 When using the Azure Blob Storage provider, an authenticated Backstage user may be able to read restricted
 TechDocs content when entity-level permissions are enabled. Deployments that intentionally disable the
 default backend authentication policy may have broader exposure. This issue is fixed in version 2.2.4.
 (CVE-2026-106490)

Solution

Update the @backstage/plugin-techdocs-backend library and its related packages to version 2.2.4 or later.

See Also

https://github.com/advisories/GHSA-7mfx-xg57-53c9

Plugin Details

Severity: Medium

ID: 473660

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/7/2026

Updated: 10/7/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.67

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-106490

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

Vulnerability Publication Date: 10/6/2026

Reference Information

CVE: CVE-2026-106490