# Backstage Backend-Defaults vulnerabilities Source: https://junglewise.ai/threats/technologies/backend-defaults Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 12 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/backend-defaults.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 5 vulnerabilities in Backstage Backend-Defaults: 0 in the last 7 days and 3 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-106495, was published on 12 October 2026. 1 vulnerability in the last four weeks, down 50% on the four before (2). ## Counts - Last 7 days: 0 - Last 30 days: 0 - Last 90 days: 3 - All time: 5 (0 critical, 0 exploited in the wild) ## About Backstage Backend-Defaults A library providing default backend configurations for the Backstage framework. ## Latest Backstage Backend-Defaults vulnerabilities - [CVE-2026-106495: Backstage backend-defaults improper access control in action invocation](https://junglewise.ai/threats/cve-2026-106495-backstage-improper-access-control-in-backend-action-invocation) (medium, CVSS 4.3, published 12 Oct 2026) - [CVE-2026-106494: Backstage backend-defaults path traversal in cloud storage URL readers](https://junglewise.ai/threats/cve-2026-106494-backstage-is-an-open-framework-for-building-developer-portals) (medium, CVSS 4.4, published 6 Oct 2026) - [CVE-2026-106492: Backstage backend-defaults service credential delegation bypass](https://junglewise.ai/threats/cve-2026-106492-backstage-is-an-open-framework-for-building-developer-portals) (high, CVSS 7.6, published 6 Oct 2026) - [CVE-2026-24046: Backstage Scaffolder symlink path traversal in multiple actions](https://junglewise.ai/threats/cve-2026-24046-backstage-scaffolder-symlink-path-traversal-in-multiple-actions) (high, CVSS 7.1, published 21 Jan 2026) - [CVE-2026-24048: Backstage SSRF in FetchUrlReader via HTTP redirects](https://junglewise.ai/threats/cve-2026-24048-backstage-ssrf-in-fetchurlreader-via-http-redirects) (low, CVSS 3.1, published 21 Jan 2026) ## Most severe Backstage Backend-Defaults vulnerabilities - [CVE-2026-106492: Backstage backend-defaults service credential delegation bypass](https://junglewise.ai/threats/cve-2026-106492-backstage-is-an-open-framework-for-building-developer-portals) (high, CVSS 7.6, published 6 Oct 2026) - [CVE-2026-24046: Backstage Scaffolder symlink path traversal in multiple actions](https://junglewise.ai/threats/cve-2026-24046-backstage-scaffolder-symlink-path-traversal-in-multiple-actions) (high, CVSS 7.1, published 21 Jan 2026) - [CVE-2026-106494: Backstage backend-defaults path traversal in cloud storage URL readers](https://junglewise.ai/threats/cve-2026-106494-backstage-is-an-open-framework-for-building-developer-portals) (medium, CVSS 4.4, published 6 Oct 2026) - [CVE-2026-106495: Backstage backend-defaults improper access control in action invocation](https://junglewise.ai/threats/cve-2026-106495-backstage-improper-access-control-in-backend-action-invocation) (medium, CVSS 4.3, published 12 Oct 2026) - [CVE-2026-24048: Backstage SSRF in FetchUrlReader via HTTP redirects](https://junglewise.ai/threats/cve-2026-24048-backstage-ssrf-in-fetchurlreader-via-http-redirects) (low, CVSS 3.1, published 21 Jan 2026) ## Vulnerabilities per week 1 vulnerability in the last four weeks, down 50% on the four before (2). | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 2 | 0 | 0 | | 12 Oct 2026 | 1 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other Backstage technologies - [Backstage Plugin-Scaffolder-Backend](https://junglewise.ai/threats/technologies/plugin-scaffolder-backend): 10 vulnerabilities - [Backstage Plugin-Techdocs-Node](https://junglewise.ai/threats/technologies/plugin-techdocs-node): 10 vulnerabilities - [Backstage Plugin-Auth-Backend](https://junglewise.ai/threats/technologies/plugin-auth-backend): 4 vulnerabilities - [Backstage Catalog Backend Plugin](https://junglewise.ai/threats/technologies/plugin-catalog-backend): 4 vulnerabilities - [Backstage Plugin-Techdocs-Backend](https://junglewise.ai/threats/technologies/plugin-techdocs-backend): 4 vulnerabilities - [Backstage Scaffolder Backend Plugin](https://junglewise.ai/threats/technologies/scaffolder-backend-plugin): 3 vulnerabilities - [Backstage TechDocs](https://junglewise.ai/threats/technologies/techdocs): 3 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Backstage Backend-Defaults vulnerabilities", https://junglewise.ai/threats/technologies/backend-defaults, 12 November 2026.