SCA: security update for @backstage/plugin-auth-node (GHSA-xm5q-p7w3-x6cp)

medium Tenable Cloud Security Plugin ID 473815

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. From 0.3.0 until 0.6.15 and 0.7.5, the
@backstage/plugin-auth-node package did not consistently honor explicit negative email verification during
shared OAuth profile normalization. The affected paths include a selected profile email marked verified:
false, a matching raw provider email marked email_verified: false, and an email obtained only from an ID
token marked email_verified: false. Exploitation requires an admitted identity-provider user who can
supply or change an unverified email and a deployment that uses the selected profile email to resolve
catalog identities. The verification metadata must apply to the selected email; an absent email_verified
claim alone is not affected. In an affected configuration, the user may assume another catalog identity
and obtain its associated access and permissions. This issue is fixed in versions 0.6.15 and 0.7.5.
(CVE-2026-106460)

Solution

Update the @backstage/plugin-auth-node library and its related packages to version 0.6.15 or later.

See Also

https://github.com/advisories/GHSA-xm5q-p7w3-x6cp

Plugin Details

Severity: Medium

ID: 473815

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/8/2026

Updated: 10/8/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.48

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.6

Temporal Score: 4.9

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

CVSS Score Source: CVE-2026-106460

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/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-2026-106460

cwe: CWE-287