CVE-2026-106509

highPriorität · verfolgen · 35EPSS 0.005 · 44. PerzentilUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.52% (44th) EPSS

CVSS 8.8 · high

Is it mine?

6 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 1.14.6, the @backstage/plugin-techdocs-node package is affected by improper validation of mkdocs theme configuration in techdocs. When TechDocs is configured to build documentation locally or in a container, a user with write access to a registered repository can include configuration values in mkdocs.yml that cause arbitrary code execution during the documentation build process. This issue is fixed in versions 1.14.6 and 1.15.4.

cvss

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

8.8

010

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

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USAusnutzbarkeit 2.8 · Auswirkung 5.9

v3.17.7highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:Lsecondary · security-advisories@github.comAusnutzbarkeit 1.8 · Auswirkung 5.3

v3.17.7highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:Lsecondary · OSV

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Trackcoordinatorcisa_ssvcUS

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-1336USCWE-1336USCWE-94USCWE-94US

betroffene Produkte (6)

Betroffene Produkte und Versionsbereiche.

linuxfoundation backstage< 1.50.5nvdUScpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*
linuxfoundation backstage= 1.51.0nvdUScpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*
linuxfoundation backstage1.51.1 → 1.54.6nvdUScpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*
linuxfoundation backstage plugin-techdocs-node< 1.14.6nvdUScpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:*:*:*:*:*:*:*:*
linuxfoundation backstage plugin-techdocs-node1.15.0 → 1.15.4nvdUScpe:2.3:a:linuxfoundation:backstage_plugin-techdocs-node:*:*:*:*:*:*:*:*
npm @backstage/plugin-techdocs-node< 1.15.4osvUSpkg:npm/%40backstage/plugin-techdocs-node

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

GHSA-8w7q-29mw-gf5cBackstage: Improper validation of MkDocs theme configuration in TechDocs2026-10-07ghsa · osvUS
### Impact When TechDocs is configured to build documentation locally or in a container, a user with write access to a registered repository can include configuration values in `mkdocs.yml` that cause arbitrary code execution during the documentation build process. ### Patches Patched in `@backstage/plugin-techdocs-node` version `1.15.4` ### Workarounds - Configure TechDocs with `techdocs.generator.runIn: 'docker'` instead of `'local'` to provide container isolation, though this does not fully mitigate the risk. - Restrict write access to repositories registered in the Backstage catalog to trusted users.

quellen

Welche Quellen diesen Datensatz belegen und wann.

nvd osv NVD CVE.org MITRE

veröffentlicht 2026-10-06geändert 2026-10-09

Referenzen (5) nvd

Externe Belege — Patches, Meldungen, Analysen.

https://github.com/backstage/backstage/commit/02cd7cdbb18b687446277b5602adaee7f1d53cbbExploitPatch
https://github.com/backstage/backstage/commit/a900a9953c8f7ad3ba1906d1d257725a9996cc9dExploitPatch
https://github.com/backstage/backstage/releases/tag/v1.50.5Release Notes
https://github.com/backstage/backstage/releases/tag/v1.54.6Release Notes
https://github.com/backstage/backstage/security/advisories/GHSA-8w7q-29mw-gf5cVendor AdvisoryMitigation

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