backstage vulnerabilities
CVEs whose affected-version data names the backstage package (npm). Each record lists the affected and patched versions; check a specific version with the dependency checker or POST /api/sbom.
43 CVEsRSS
CVE-2026-115923Medium· 6.5Backstage catalog rules can be bypassed for URL locations using encoded path segments
Backstage is an open framework for building developer portals. Prior to 3.9.2 and from 4.0.0 until 4.0.2, DefaultCatalogRulesEnforcer in @backstage/plugin-catalog-backend compares the raw location.target URL against catalog.rules, while …
CVE-2026-106495Medium· 4.3Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 0.17.8, the @backstage/backend-defaults package is affected by improper access control in backend action invocation. An authenticated user could invoke actions that …
CVE-2026-106557High· 7.7Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 1.14.6 and 1.15.4, the @backstage/plugin-techdocs-node package did not sufficiently validate TechDocs Markdown extension configuration. An authenticated user who can…
CVE-2026-106563Medium· 5.3Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 0.21.8, the @backstage/plugin-kubernetes-backend package is affected by improper entity validation in deprecated kubernetes services endpoint. An authenticated user …
CVE-2026-106562Medium· 4.3Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 2.1.6 in @backstage/plugin-search-backend and 1.8.7 in @backstage/plugin-search-backend-module-elasticsearch, search engine permission filtering could return documen…
CVE-2026-106561Medium· 5.0Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 0.21.9, the @backstage/plugin-kubernetes-backend package is affected by sensitive information disclosure in kubernetes resource queries. An authenticated user holdin…
CVE-2026-106560High· 7.1Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 0.3.25, the @backstage/plugin-scaffolder-backend-module-confluence-to-markdown package is affected by improper repository path validation in a scaffolder backend mod…
CVE-2026-106559Medium· 6.3Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 0.3.25, the @backstage/plugin-scaffolder-backend-module-confluence-to-markdown package is affected by improper input validation in confluence to markdown scaffolder …
CVE-2026-106558High· 8.8Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 1.14.8, 1.15.6, and 2.0.1, the @backstage/plugin-techdocs-node package improperly validated mapping-style markdown_extensions configuration. An authenticated attacke…
CVE-2026-106556High· 7.7Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 1.14.6, the @backstage/plugin-techdocs-node package is affected by configuration bypass in techdocs mkdocs.yml sanitization. Insufficient validation of MkDocs config…
CVE-2026-106510High· 7.7Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 1.14.6, the @backstage/plugin-techdocs-node package is affected by remote code execution via crafted markdown_extensions in techdocs mkdocs.yml. An authenticated use…
CVE-2026-106509High· 7.7Backstage is an open framework for building developer portals
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 buil…
CVE-2026-106508Medium· 5.3Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 1.15.4, the @backstage/plugin-techdocs-node package is affected by potential file exposure through local techdocs publisher. When using the local TechDocs publisher …
CVE-2026-106507Medium· 5.3Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 1.15.4, the @backstage/plugin-techdocs-node package is affected by techdocs arbitrary file read via mkdocs snippets. Unsafe path resolution in TechDocs source tree h…
CVE-2026-106506Medium· 5.3Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by improper input validation in scaffolder task list ordering. An authenticated Backstage user wi…
CVE-2026-106505High· 7.7Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 1.14.6 and 1.15.4, the @backstage/plugin-techdocs-node package is affected by bypass of mkdocs configuration sanitizer in techdocs backend. Users with the ability to…
CVE-2026-106504Medium· 6.5Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by sensitive information exposure in scaffolder task logs. An authenticated user who can create a…
CVE-2026-106503High· 8.1Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 3.3.1, 3.4.1, 4.0.3 and 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by scaffolder action input authorization bypass. An authenticated user wi…
CVE-2026-106502Medium· 5.3Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package could expose sensitive information in Scaffolder task failure events. Under specific template and failure con…
CVE-2026-106501Critical· 9.6Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 3.3.1, 3.4.1, 4.0.3 and 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by sensitive information exposure in scaffolder. An authenticated Backsta…
CVE-2026-106500High· 8.5Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 3.3.1, 3.4.1, 4.0.3 and 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by improper task state validation in scaffolder backend. An authenticated…
CVE-2026-106499Medium· 4.9Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package could expose secret-derived values in Scaffolder task logs. Deployments that configure sensitive scaffolder.d…
CVE-2026-106498High· 7.7⚖ disputedBackstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 3.5.1, 3.6.2, 3.7.2, 3.8.2 and 3.9.1, the @backstage/plugin-catalog-backend package is affected by improper url validation in catalog entity placeholder resolution. …
CVE-2026-106497Medium· 4.3Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 3.9.1, the @backstage/plugin-catalog-backend package is affected by inconsistent catalog property permission evaluation. In deployments that use affected value-based…
CVE-2026-106496Low· 3.1Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 3.9.1, the @backstage/plugin-catalog-backend package is affected by inconsistent enforcement of allowed location types during catalog processing. Under certain confi…
CVE-2026-106494Medium· 4.4Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 0.17.8, the @backstage/backend-defaults package is affected by improper input validation in cloud storage url readers. An attacker with write access to a cloud stora…
CVE-2026-106493Low· 3.0Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 1.54.6, cloud storage catalog providers did not sufficiently validate object paths. A principal able to create or rename objects in a configured Azure Blob Storage o…
CVE-2026-106492High· 7.6Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 0.16.1 and 0.17.8, the @backstage/backend-defaults package is affected by improper preservation of access restrictions during service credential delegation. An exter…
CVE-2026-106490Medium· 6.5Backstage is an open framework for building developer portals
Backstage is an open framework for building developer portals. Prior to 2.2.4, the @backstage/plugin-techdocs-backend package is affected by improper input validation in techdocs static content requests. When using the Azure Blob Storage…
CVE-2026-106489Medium· 6.5Backstage is an open framework for building developer portals
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 acces…