CVE-2026-106489

mediumPriorität · verfolgen · 0OT-Risiko · erhöhtEPSS 0.003 · 21. PerzentilUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.29% (21st) EPSS

CVSS 6.5 · medium

Is it mine?

3 products

Prüfe deine Angriffsfläche

Who says so?

2 sources

nvd · osv

EPSS · bewertet 2026-10-27

Backstage is an open framework for building developer portals. Prior to 2.2.4, the @backstage/plugin-techdocs-backend package is affected by improper authorization enforcement for techdocs static content. An authenticated user with access to one TechDocs documentation site could craft a URL able to read documentation belonging to a different entity. This only affects deployments using the external TechDocs builder with an external storage provider (S3, GCS, etc.) and the permission framework enabled. Instances that do not use the permission framework are unaffected, since TechDocs content is visible to all authenticated users by design. This issue is fixed in version 2.2.4.

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

6.5

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nsecondary · security-advisories@github.comAusnutzbarkeit 2.8 · Auswirkung 3.6

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nsecondary · OSV

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Trackcoordinatorcisa_ssvcUS

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-22USCWE-22USCWE-862USCWE-862US

betroffene Produkte (3)

Betroffene Produkte und Versionsbereiche.

linuxfoundation backstage< 1.54.6nvdUScpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*
linuxfoundation backstage/plugin-techdocs-backend< 2.2.4nvdUScpe:2.3:a:linuxfoundation:backstage\/plugin-techdocs-backend:*:*:*:*:*:*:*:*
npm @backstage/plugin-techdocs-backend< 2.2.4osvUSpkg:npm/%40backstage/plugin-techdocs-backend

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

GHSA-rg9r-hr7g-5gc2Backstage: Improper authorization enforcement for TechDocs static content2026-10-07ghsa · osvUS
### Impact An authenticated user with access to one TechDocs documentation site could craft a URL able to read documentation belonging to a different entity. This only affects deployments using the external TechDocs builder with an external storage provider (S3, GCS, etc.) and the permission framework enabled. Instances that do not use the permission framework are unaffected, since TechDocs content is visible to all authenticated users by design. ### Patches Patched in `@backstage/plugin-techdocs-backend` version `2.2.4` ### Workarounds - None other than upgrading. Deployments that serve TechDocs from local storage are not affected.

quellen

Welche Quellen diesen Datensatz belegen und wann.

nvd osv NVD CVE.org MITRE

veröffentlicht 2026-10-06geändert 2026-10-22

Referenzen (3) nvd

Externe Belege — Patches, Meldungen, Analysen.

https://github.com/backstage/backstage/commit/bf6bbf7326ada7d96d7b2c4ebc4a71546106f311Patch
https://github.com/backstage/backstage/releases/tag/v1.54.6PatchRelease Notes
https://github.com/backstage/backstage/security/advisories/GHSA-rg9r-hr7g-5gc2Vendor Advisory

scry

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