SCA: security update for @backstage/plugin-scaffolder-backend (GHSA-wg6p-jmpc-xjmr)

critical Tenable Self-Hosted Container Security Plugin ID 419911

Description

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

- Backstage is an open platform for building developer portals. The Backstage scaffolder-backend plugin uses
a templating library that requires sandbox, as it by design allows for code injection. The library used
for this sandbox so far has been `vm2`, but in light of several past vulnerabilities and existing
vulnerabilities that may not have a fix, the plugin has switched to using a different sandbox library. A
malicious actor with write access to a registered scaffolder template could manipulate the template in a
way that allows for remote code execution on the scaffolder-backend instance. This was only exploitable in
the template YAML definition itself and not by user input data. This is vulnerability is fixed in version
1.15.0 of `@backstage/plugin-scaffolder-backend`. (CVE-2023-35926)

Plugin Details

Severity: Critical

ID: 419911

Version: Revision 1.13

Type: Local

Family: SCA Checks

Published: 1/23/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.66

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

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

CVSS Score Source: CVE-2023-35926

CVSS v3

Risk Factor: Critical

Base Score: 9.9

Temporal Score: 8.6

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/21/2023

Vulnerability Publication Date: 6/21/2023

Reference Information

CVE: CVE-2023-35926

cwe: CWE-94

Detections

Analytics