CVE-2026-106492Published

Backstage: Improper preservation of access restrictions during service credential delegation

cve-program · CVE-2026-106492

Published

backstage

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "backstage",
                    "product": "backstage",
                    "versions": [
                        {
                            "version": "< 1.49.6",
                            "status": "affected"
                        },
                        {
                            "version": ">= 1.50.0-next.0, < 1.54.6",
                            "status": "affected"
                        }
                    ]
                }

backend-defaults

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "@backstage",
                    "product": "backend-defaults",
                    "versions": [
                        {
                            "version": "< 0.16.1",
                            "status": "affected"
                        },
                        {
                            "version": ">= 0.17.0, < 0.17.8",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

euvd · EUVD-2026-94012

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Oct 6, 2026, 8:48:05 PM

dateUpdated: Oct 9, 2026, 1:51:07 AM

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

nvd · CVE-2026-106492

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-269 · CWE-863

Original publisher date fields

published: 2026-10-06T21:17:18.220

lastModified: 2026-10-22T13:40:44.623

2 source CPE criteria · context only

cpe:2.3:a:linuxfoundation:backstage\/backend-defaults:*:*:*:*:*:node.js:*:*
cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GHSA-cq7v-rfgc-5c7v

Published

@backstage/backend-defaults

npm

SEMVER · introduced 0 → fixed 0.17.8

Original source record · Cite this exact observation · Complete original publisher JSON