SCA: security update for @backstage/plugin-scaffolder-backend (GHSA-8qp7-fhr9-fw53)

medium Tenable Self-Hosted Container Security Plugin ID 438383

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 version 3.1.4, a malicious
scaffolder template can bypass the log redaction mechanism to exfiltrate secrets provided run through task
event logs. This issue has been patched in version 3.1.4. (CVE-2026-29184)

Solution

Update the @backstage/plugin-scaffolder-backend library and its related packages to version 3.1.4 or later.

See Also

https://github.com/advisories/GHSA-8qp7-fhr9-fw53

Plugin Details

Severity: Medium

ID: 438383

Version: Revision 1.9

Type: Local

Family: SCA Checks

Published: 3/5/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-29184

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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: 3/5/2026

Vulnerability Publication Date: 3/5/2026

Reference Information

CVE: CVE-2026-29184

cwe: CWE-532