CVE-2026-106505 Backstage: Bypass of MkDocs configuration sanitizer in TechDocs backend

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 commit changes to a repository that uses TechDocs can...

@backstage/plugin-search-backend-module-techdocs (>=0.0.0-nightly-20230323021924, <=0.4.18-next.0), @backstage/plugin-techdocs-backend (>=0.0.0-nightly-2021111822616, <=2.2.3-next.1) +2 more potentially affected by CVE-2026-106505 via @backstage/plugin-techdocs-node (>=0.0.0-nightly-20220315022536, <=1.15.3)

@backstage/plugin-techdocs-node NPM version =0.0.0-nightly-20220315022536, =0.0.0-nightly-20230323021924, =0.0.0-nightly-2021111822616, =0.0.0-nightly-20220305022735, =0.0.0-nightly-2021111822616, =1.11.4-next.0 Source cves: CVE-2026-106505 Source advisory: MEND:CVE-2026-106505...

CVE-2026-106505 Backstage: Bypass of MkDocs configuration sanitizer in TechDocs backend

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 commit changes to a repository that uses TechDocs can...

CVE-2026-106505

The @backstage/plugin-techdocs-node package in the Backstage framework is vulnerable to a bypass of the MkDocs configuration sanitizer in the TechDocs backend. Affected versions are those prior to 1.14.6 and 1.15.4 . An attacker with permissions to commit changes to a repository using TechDocs ca...

CVE-2026-106505 Backstage: Bypass of MkDocs configuration sanitizer in TechDocs backend

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 commit changes to a repository that uses TechDocs can...

CVE-2026-106505

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 commit changes to a repository that uses TechDocs can...

CVE-2026-106504 Backstage: Sensitive information exposure in scaffolder task logs

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 and read scaffolder tasks may be able to observe sensitive...

@alithya-oss/backstage-plugin-scaffolder-backend-module-aws-apps (>=0.3.10, <=0.3.12), @alithya-oss/plugin-scaffolder-backend-module-aws-apps (>=0.3.6, <=0.3.9) +56 more potentially affected by CVE-2026-106504 via @backstage/plugin-scaffolder-backend (>=0.0.0-nightly-20220708025041, <=3.4.1)

@backstage/plugin-scaffolder-backend NPM version =0.0.0-nightly-20220708025041, =0.3.10, =0.3.6, =0.1.0, =0.4.0, =0.0.0-nightly-202110122318, =0.0.0-nightly-20230325022054, =0.0.0-nightly-2021101022158, =0.0.0-nightly-2021101022158, =0.0.0-nightly-20230112022659, =0.0.0-nightly-2021101022158,...

CVE-2026-106504

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 and read scaffolder tasks may be able to observe sensitive...

CVE-2026-106504 Backstage: Sensitive information exposure in scaffolder task logs

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 and read scaffolder tasks may be able to observe sensitive...

CVE-2026-106504 Backstage: Sensitive information exposure in scaffolder task logs

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 and read scaffolder tasks may be able to observe sensitive...

CVE-2026-106504

The Backstage framework is vulnerable in the @backstage/plugin-scaffolder-backend package prior to version 4.1.0 . The root cause is sensitive information exposure within scaffolder task logs. An authenticated user capable of creating and reading tasks can observe sensitive values if a deployment...

CVE-2026-106503 Backstage: Scaffolder action input authorization bypass

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 with access to affected Scaffolder templates could bypass...

CVE-2026-106503

The Backstage framework's @backstage/plugin-scaffolder-backend package is vulnerable to a scaffolder action input authorization bypass in versions prior to 3.3.1, 3.4.1, 4.0.3, and 4.1.0. An authenticated user with access to affected Scaffolder templates can bypass configured action restrictions....

CVE-2026-106503 Backstage: Scaffolder action input authorization bypass

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 with access to affected Scaffolder templates could bypass...

@alithya-oss/backstage-plugin-scaffolder-backend-module-aws-apps (>=0.3.10, <=0.3.12), @alithya-oss/plugin-scaffolder-backend-module-aws-apps (>=0.3.6, <=0.3.9) +55 more potentially affected by CVE-2026-106503 via @backstage/plugin-scaffolder-backend (>=0.0.0-nightly-20220708025041, <=2.2.3)

@backstage/plugin-scaffolder-backend NPM version =0.0.0-nightly-20220708025041, =0.3.10, =0.3.6, =0.1.0, =0.4.0, =0.0.0-nightly-202110122318, =0.0.0-nightly-20230325022054, =0.0.0-nightly-2021101022158, =0.0.0-nightly-2021101022158, =0.0.0-nightly-20230112022659, =0.0.0-nightly-2021101022158,...

CVE-2026-106503 Backstage: Scaffolder action input authorization bypass

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 with access to affected Scaffolder templates could bypass...

CVE-2026-106503

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 with access to affected Scaffolder templates could bypass...

CVE-2026-106502 Backstage: Sensitive information may be exposed in Scaffolder task failure events

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 conditions, an authenticated user may retrieve backend-managed...

CVE-2026-106502

The Backstage framework, specifically the @backstage/plugin-scaffolder-backend package in versions prior to 4.1.0 , contains a vulnerability where sensitive information may be exposed in Scaffolder task failure events . Under specific template and failure conditions, an authenticated user could r...