Detections
Analytics

SCA: security update for @backstage/plugin-techdocs-node (GHSA-f7v3-xhm6-w245)

high Tenable Self-Hosted Container Security Plugin ID 473695

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 1.14.6 and 1.15.4, the
 @backstage/plugin-techdocs-node package did not sufficiently validate TechDocs Markdown extension
 configuration. An authenticated user who can register or modify documentation sources may cause a TechDocs
 build to access resources outside the intended documentation boundary, potentially exposing backend-host
 data or internal network resources. This issue is fixed in versions 1.14.6 and 1.15.4 when pymdown-
 extensions 10.21.3 or later is also used, normally through mkdocs-techdocs-core 1.7.0 or later.
 (CVE-2026-106557)

Solution

Update the @backstage/plugin-techdocs-node library and its related packages to version 1.15.4 or later.

See Also

https://github.com/advisories/GHSA-f7v3-xhm6-w245

Plugin Details

Severity: High

ID: 473695

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/7/2026

Updated: 10/7/2026

Risk Information

VPR

Risk Factor: Low

Score: 3.3

Percentile: 50.54

Vendor

Vendor Severity: High

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-2026-106557

CVSS v3

Risk Factor: High

Base Score: 7.7

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/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: 10/7/2026

Vulnerability Publication Date: 10/7/2026

Reference Information

CVE: CVE-2026-106557