@backstage/plugin-search-backend-module-techdocs (>=0.0.0-nightly-20260822023239, <=0.4.18-next.0), @backstage/plugin-techdocs-backend (>=0.0.0-nightly-20260827035829, <=2.2.3-next.1) +1 more potentially affected by CVE-2026-106509 via @backstage/plugin-techdocs-node (>=1.15.1-next.0, <=1.15.3)

@backstage/plugin-techdocs-node NPM version =1.15.1-next.0, =0.0.0-nightly-20260822023239, =0.0.0-nightly-20260827035829, =0.0.0-nightly-20260823023807, =1.11.4-next.0 Source cves: CVE-2026-106509 Source advisory: SNYK:JS-BACKSTAGEPLUGINTECHDOCSNODE-20825467...

@backstage/plugin-search-backend-module-techdocs (>=0.0.0-nightly-20260415031804, <=0.4.14-next.0), @backstage/plugin-techdocs-backend (>=0.0.0-nightly-2021111822616, <=2.1.8-next.0) +2 more potentially affected by CVE-2026-106509 via @backstage/plugin-techdocs-node (>=1.0.0, <=1.14.6-next.0)

@backstage/plugin-techdocs-node NPM version =1.0.0, =0.0.0-nightly-20260415031804, =0.0.0-nightly-2021111822616, =0.11.13, =0.0.0-nightly-2021111822616, =1.10.8-next.0 Source cves: CVE-2026-106509 Source advisory: SNYK:JS-BACKSTAGEPLUGINTECHDOCSNODE-20825467...

@backstage/plugin-search-backend-module-techdocs (>=0.0.0-nightly-20260415031804, <=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-2026-106509 via @backstage/plugin-techdocs-node (>=1.0.0, <=1.15.3)

@backstage/plugin-techdocs-node NPM version =1.0.0, =0.0.0-nightly-20260415031804, =0.0.0-nightly-2021111822616, =0.11.13, =0.0.0-nightly-2021111822616, =1.11.4-next.0 Source cves: CVE-2026-106509 Source advisory: GHSA-8W7Q-29MW-GF5C...

EUVD-2026-94074

Backstage: Improper validation of MkDocs theme configuration in TechDocs...

Improper Neutralization of Special Elements Used in a Template Engine

Overview @backstage/plugin-techdocs-node is a Common node.js functionalities for TechDocs, to be shared between techdocs-backend plugin and techdocs-cli Affected versions of this package are vulnerable to Improper Neutralization of Special Elements Used in a Template Engine via insufficient...

@backstage/plugin-search-backend-module-techdocs (>=0.0.0-nightly-20260822023239, <=0.4.18-next.0), @backstage/plugin-techdocs-backend (>=0.0.0-nightly-20260827035829, <=2.2.3-next.1) +1 more potentially affected by CVE-2026-106557 via @backstage/plugin-techdocs-node (>=1.15.1-next.0, <=1.15.3)

@backstage/plugin-techdocs-node NPM version =1.15.1-next.0, =0.0.0-nightly-20260822023239, =0.0.0-nightly-20260827035829, =0.0.0-nightly-20260823023807, =1.11.4-next.0 Source cves: CVE-2026-106557 Source advisory: SNYK:JS-BACKSTAGEPLUGINTECHDOCSNODE-20825495...

@backstage/plugin-search-backend-module-techdocs (>=0.0.0-nightly-20260415031804, <=0.4.14-next.0), @backstage/plugin-techdocs-backend (>=0.0.0-nightly-2021111822616, <=2.1.8-next.0) +2 more potentially affected by CVE-2026-106557 via @backstage/plugin-techdocs-node (>=1.0.0, <=1.14.6-next.0)

@backstage/plugin-techdocs-node NPM version =1.0.0, =0.0.0-nightly-20260415031804, =0.0.0-nightly-2021111822616, =0.11.13, =0.0.0-nightly-2021111822616, =1.10.8-next.0 Source cves: CVE-2026-106557 Source advisory: SNYK:JS-BACKSTAGEPLUGINTECHDOCSNODE-20825495...

@backstage/plugin-search-backend-module-techdocs (>=0.0.0-nightly-20260415031804, <=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-2026-106557 via @backstage/plugin-techdocs-node (>=1.0.0, <=1.15.3)

@backstage/plugin-techdocs-node NPM version =1.0.0, =0.0.0-nightly-20260415031804, =0.0.0-nightly-2021111822616, =0.11.13, =0.0.0-nightly-2021111822616, =1.11.4-next.0 Source cves: CVE-2026-106557 Source advisory: OSV:GHSA-F7V3-XHM6-W245...

Server-side Request Forgery (SSRF)

Overview @backstage/plugin-techdocs-node is a Common node.js functionalities for TechDocs, to be shared between techdocs-backend plugin and techdocs-cli Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via the sanitizeMkdocsYml function in mkdocsPatchers.ts,...

@backstage/plugin-search-backend-module-techdocs (>=0.0.0-nightly-20260415031804, <=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-2026-106557 via @backstage/plugin-techdocs-node (>=1.0.0, <=1.15.3)

@backstage/plugin-techdocs-node NPM version =1.0.0, =0.0.0-nightly-20260415031804, =0.0.0-nightly-2021111822616, =0.11.13, =0.0.0-nightly-2021111822616, =1.11.4-next.0 Source cves: CVE-2026-106557 Source advisory: GHSA-F7V3-XHM6-W245...

CVE-2026-106557 Backstage: Improper input validation in TechDocs Markdown extension configuration

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 register or modify documentation sources may cause a TechDo...

@backstage/plugin-search-backend-module-techdocs (>=0.0.0-nightly-20260415031804, <=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-2026-106557 via @backstage/plugin-techdocs-node (>=0.11.12, <=1.15.3)

@backstage/plugin-techdocs-node NPM version =0.11.12, =0.0.0-nightly-20260415031804, =0.0.0-nightly-2021111822616, =0.11.12-next.0, =0.0.0-nightly-2021111822616, =1.11.4-next.0 Source cves: CVE-2026-106557 Source advisory: MEND:CVE-2026-106557...

CVE-2026-106557

The Backstage framework (versions prior to 1.14.6 and 1.15.4 ) is vulnerable to improper input validation within the @backstage/plugin-techdocs-node package. An authenticated user capable of registering or modifying documentation sources can trigger a TechDocs build that accesses resources outsid...

CVE-2026-106557 Backstage: Improper input validation in TechDocs Markdown extension configuration

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 register or modify documentation sources may cause a TechDo...

CVE-2026-106557 Backstage: Improper input validation in TechDocs Markdown extension configuration

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 register or modify documentation sources may cause a TechDo...

CVE-2026-106557

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 register or modify documentation sources may cause a TechDo...

GHSA-68JQ-FHCH-4XQ4 Quasar Framework: Super-linear regex backtracking on User-Agent lets one request stall a Quasar SSR server

Summary One unauthenticated request with a crafted User-Agent stalls a Quasar SSR server for seconds. Quasar auto-installs its Platform plugin on every server-side render, and Platform.parseSSR feeds the raw, unbounded User-Agent request header into a chain of backtracking regular expressions in...

Quasar Framework: Super-linear regex backtracking on User-Agent lets one request stall a Quasar SSR server

Summary One unauthenticated request with a crafted User-Agent stalls a Quasar SSR server for seconds. Quasar auto-installs its Platform plugin on every server-side render, and Platform.parseSSR feeds the raw, unbounded User-Agent request header into a chain of backtracking regular expressions in...

CVE-2026-106561

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 holding the standard Kubernetes resource read permission could...

CVE-2026-106563

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 with Kubernetes read permissions could access Kubernetes...