Detections
Analytics
SCA: security update for @backstage/backend-defaults (GHSA-cq7v-rfgc-5c7v)
high Tenable Self-Hosted Container Security Plugin ID 473677
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 0.16.1 and 0.17.8, the
@backstage/backend-defaults package is affected by improper preservation of access restrictions during
service credential delegation. An external service credential configured with access restrictions (e.g.,
read-only) could bypass those restrictions by routing requests through plugin delegation paths. This could
allow a restricted service to perform operations beyond its intended scope, including write operations on
plugins it was restricted to read-only access for. This issue is fixed in versions 0.16.1 and 0.17.8.
(CVE-2026-106492)
Solution
Update the @backstage/backend-defaults library and its related packages to version 0.17.8 or later.See Also
Plugin Details
Severity: High
ID: 473677
Version: Revision 1.1
Type: Local
Family: SCA Checks
Published: 10/7/2026
Updated: 10/7/2026
Risk Information
VPR
Risk Factor: Low
Score: 3.9
Percentile: 52.47
Vendor
Vendor Severity: High
CVSS v2
Risk Factor: High
Base Score: 8
Temporal Score: 5.9
Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:C/A:P
CVSS Score Source: CVE-2026-106492
CVSS v3
Risk Factor: High
Base Score: 7.6
Temporal Score: 6.6
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/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-2026-106492