GHSA-WQVH-63MV-9W92 @backstage/plugin-auth-backend: OAuth redirect URI allowlist bypass

Impact The experimental OIDC provider in @backstage/plugin-auth-backend is vulnerable to a redirect URI allowlist bypass. Instances that have enabled experimental Dynamic Client Registration or Client ID Metadata Documents and configured allowedRedirectUriPatterns are affected. A specially crafte...

EUVD-2026-11671

@backstage/plugin-auth-backend: OAuth redirect URI allowlist bypass...

@backstage-community/plugin-catalog-backend-module-keycloak (>=3.4.0, <=3.17.2), @dedel.alex/keycloak-admin-client-cjs (>=26.0.4, <=26.1.4) +7 more potentially affected by CVE-2026-2366 via @keycloak/keycloak-admin-client (>=26.0.0, <=26.5.5)

@keycloak/keycloak-admin-client NPM version =26.0.0, =3.4.0, =26.0.4, =26.0.0, =26.0.0, =26.0.0, =2.1.1, =0.0.7, =0.1.1 Source cves: CVE-2026-2366 Source advisory: OSV:GHSA-R8JR-WG88-FQ5C...

CVE-2026-32237: Exposure of Sensitive Information to an Unauthorized Actor

Backstage is an open framework for building developer portals. Prior to 3.1.5, authenticated users with permission to execute scaffolder dry-runs can gain access to server-configured environment secrets through the dry-run API response. Secrets are properly redacted in log output but not in all...

CVE-2026-32236: Server-Side Request Forgery (SSRF)

Backstage is an open framework for building developer portals. Prior to 0.27.1, a Server-Side Request Forgery SSRF vulnerability exists in @backstage/plugin-auth-backend when auth.experimentalClientIdMetadataDocuments.enabled is set to true. The CIMD metadata fetch validates the initial clientid...

CVE-2026-32235: URL Redirection to Untrusted Site

Backstage is an open framework for building developer portals. Prior to 0.27.1, the experimental OIDC provider in @backstage/plugin-auth-backend is vulnerable to a redirect URI allowlist bypass. Instances that have enabled experimental Dynamic Client Registration or Client ID Metadata Documents a...

CVE-2026-29186

Backstage is an open framework for building developer portals. Prior to version 1.14.3, this is a configuration bypass vulnerability that enables arbitrary code execution. The @backstage/plugin-techdocs-node package uses an allowlist to filter dangerous MkDocs configuration keys during the...

CVE-2026-29186: Unrestricted Upload of File with Dangerous Type

Backstage is an open framework for building developer portals. Prior to version 1.14.3, this is a configuration bypass vulnerability that enables arbitrary code execution. The @backstage/plugin-techdocs-node package uses an allowlist to filter dangerous MkDocs configuration keys during the...

CVE-2026-25152

The CVE-2026-25152 entry concerns the Backstage @backstage/plugin-techdocs-node, where versions before 1.13.11 and 1.14.1 allow path traversal via the TechDocs local generator when techdocs.generator.runIn is set to local. This permits reading arbitrary host files as MkDocs follows symlinks in do...

CVE-2026-25152 @backstage/plugin-techdocs-node vulnerable to possible Path Traversal in TechDocs Local Generator

Backstage is an open framework for building developer portals, and @backstage/plugin-techdocs-node provides common node.js functionalities for TechDocs. In versions of @backstage/plugin-techdocs-node prior to 1.13.11 and 1.14.1, a path traversal vulnerability in the TechDocs local generator allow...

CVE-2026-25152

Backstage is an open framework for building developer portals, and @backstage/plugin-techdocs-node provides common node.js functionalities for TechDocs. In versions of @backstage/plugin-techdocs-node prior to 1.13.11 and 1.14.1, a path traversal vulnerability in the TechDocs local generator allow...

@backstage/plugin-search-backend-module-techdocs (>=0.4.2-next.0, <=0.4.9-next.1), @backstage/plugin-techdocs-backend (>=0.0.0-nightly-2021111822616, <=2.1.4-next.2) +2 more potentially affected by CVE-2026-25152 via @backstage/plugin-techdocs-node (>=1.0.0, <=1.13.11-next.0)

@backstage/plugin-techdocs-node NPM version =1.0.0, =0.4.2-next.0, =0.0.0-nightly-2021111822616, =0.11.13, =0.0.0-nightly-2021111822616, =1.10.4-next.2 Source cves: CVE-2026-25152 Source advisory: SNYK:JS-BACKSTAGEPLUGINTECHDOCSNODE-15166605...

@backstage/plugin-search-backend-module-techdocs (0.4.11-next.0), @backstage/plugin-techdocs-backend (>=0.0.0-nightly-20260123025240, <=2.1.5-next.0) +1 more potentially affected by CVE-2026-25152 via @backstage/plugin-techdocs-node (>=1.14.0, <=1.14.1-next.0)

@backstage/plugin-techdocs-node NPM version =1.14.0, =0.0.0-nightly-20260123025240, =0.0.0-nightly-20260123025240, =1.10.5-next.0 Source cves: CVE-2026-25152 Source advisory: SNYK:JS-BACKSTAGEPLUGINTECHDOCSNODE-15166605...

@backstage/plugin-search-backend-module-techdocs (>=0.0.0-nightly-20230323021924, <=0.4.9-next.1), @backstage/plugin-techdocs-backend (>=0.0.0-nightly-2021111822616, <=2.1.4-next.2) +2 more potentially affected by CVE-2026-25152 via @backstage/plugin-techdocs-node (>=0.0.0-nightly-20220315022536, <=1.13.11-next.0)

@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, =1.10.4-next.2 Source cves: CVE-2026-25152 Source advisory: MEND:CVE-2026-25152...

CVE-2026-25153

Backstage is an open framework for building developer portals, and @backstage/plugin-techdocs-node provides common node.js functionalities for TechDocs. In versions of @backstage/plugin-techdocs-node prior to 1.13.11 and 1.14.1, when TechDocs is configured with "runIn: local", a malicious actor w...

CVE-2026-25153: Improper Control of Generation of Code

Backstage is an open framework for building developer portals, and @backstage/plugin-techdocs-node provides common node.js functionalities for TechDocs. In versions of @backstage/plugin-techdocs-node prior to 1.13.11 and 1.14.1, when TechDocs is configured with runIn: local, a malicious actor who...

CVE-2026-25152: Improper Limitation of a Pathname to a Restricted Directory

Backstage is an open framework for building developer portals, and @backstage/plugin-techdocs-node provides common node.js functionalities for TechDocs. In versions of @backstage/plugin-techdocs-node prior to 1.13.11 and 1.14.1, a path traversal vulnerability in the TechDocs local generator allow...

Symlink Attack

Overview @backstage/plugin-scaffolder-node is a The plugin-scaffolder-node module for @backstage/plugin-scaffolder-backend Affected versions of this package are vulnerable to Symlink Attack via multiple actions, including debug:log, fs:delete, and archive extraction. A user who create and execute...

@alithya-oss/backstage-plugin-scaffolder-backend-module-aws-apps (>=0.3.10, <=0.3.12), @alithya-oss/backstage-plugin-scaffolder-backend-module-aws-core (>=0.2.14, <=0.2.16) +143 more potentially affected by CVE-2026-24046 via @backstage/plugin-scaffolder-node (>=0.0.0-nightly-20240929023448, <=0.11.1-next.0)

@backstage/plugin-scaffolder-node NPM version =0.0.0-nightly-20240929023448, =0.3.10, =0.2.14, =0.3.6, =0.2.6, =0.1.0, =0.1.0, =0.2.0, =0.1.0, =0.4.0, =0.4.0, =0.4.1 - @backstage-community/backstage-plugin-scaffolder-backend-module-mta 0.4.0 and more Source cves:...

@alauda/dp-dynamic-plugin-backend-core (>=0.1.11, <=0.1.12), @alithya-oss/backstage-plugin-aws-apps-backend (>=0.4.5, <=0.4.7) +248 more potentially affected by CVE-2026-24046 via @backstage/backend-defaults (>=0.0.0-nightly-20240929023448, <=0.12.1-next.1)

@backstage/backend-defaults NPM version =0.0.0-nightly-20240929023448, =0.1.11, =0.4.5, =1.0.0, =2.0.6, =0.3.10, =3.0.5, =0.4.1, =2.0.3, =0.3.6, =2.5.0, =0.1.0, =0.0.1, =0.1.0, =0.1.0, =1.0.0 - @aws/amazon-ecr-plugin-for-backstage 0.1.2 and more Source cves: CVE-2026-24046 Source advisory:...