SCA: security update for @backstage/plugin-techdocs-node (GHSA-p75x-jh7p-ppcx)

high Tenable Cloud Security Plugin ID 473661

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 is affected by bypass of mkdocs configuration sanitizer in
techdocs backend. Users with the ability to commit changes to a repository that uses TechDocs can
circumvent the MkDocs configuration file sanitizer introduced in response to CVE-2026-25153 and execute
arbitrary code on the TechDocs backend host during documentation generation. This issue is fixed in
versions 1.14.6 and 1.15.4. (CVE-2026-106505)

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-p75x-jh7p-ppcx

Plugin Details

Severity: High

ID: 473661

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/7/2026

Updated: 10/7/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

Percentile: 57.7

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

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

CVSS Score Source: CVE-2026-106505

CVSS v3

Risk Factor: High

Base Score: 7.7

Temporal Score: 6.7

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

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-2026-106505