Detections
Analytics

SCA: security update for @backstage/plugin-techdocs-node (GHSA-cm77-ch27-6w6v)

medium Tenable Self-Hosted Container Security Plugin ID 473669

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 1.15.4, the @backstage/plugin-
 techdocs-node package is affected by potential file exposure through local techdocs publisher. When using
 the local TechDocs publisher (techdocs.publisher.type: 'local'), it was possible for the documentation
 serving endpoint to follow filesystem references outside the intended documentation tree, potentially
 exposing host files to authenticated users. This is mitigated by the fact that exploration requires
 preconditions that do not arise through normal MkDocs operation. Cloud-based publishers (S3, GCS, Azure
 Blob Storage) are not affected. This issue is fixed in version 1.15.4. (CVE-2026-106508)

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-cm77-ch27-6w6v

Plugin Details

Severity: Medium

ID: 473669

Version: Revision 1.2

Type: Local

Family: SCA Checks

Published: 10/7/2026

Updated: 10/12/2026

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

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-2026-106508

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-2026-106508