GHSA-2P49-45HJ-7MC9 @backstage/cli-common has a possible `resolveSafeChildPath` Symlink Chain Bypass

Impact The resolveSafeChildPath utility function in @backstage/backend-plugin-api, which is used to prevent path traversal attacks, failed to properly validate symlink chains and dangling symlinks. An attacker could bypass the path validation by: 1. Symlink chains: Creating link1 → link2 → /outsi...

Backstage has a Possible Symlink Path Traversal in Scaffolder Actions

Impact Multiple Scaffolder actions and archive extraction utilities were vulnerable to symlink-based path traversal attacks. An attacker with access to create and execute Scaffolder templates could exploit symlinks to: 1. Read arbitrary files via the debug:log action by creating a symlink pointin...

EUVD-2026-4137

Backstage has a Possible Symlink Path Traversal in Scaffolder Actions...

@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:...

@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:...

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...

Symlink Attack

Overview @backstage/plugin-scaffolder-backend is a The Backstage backend plugin that helps you create new things 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 Scaffolde...

Symlink Attack

Overview @backstage/backend-defaults is a Backend defaults used by Backstage backend apps 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 Scaffolder templates can read,...

@backstage/backend-dynamic-feature-service (>=0.0.0-nightly-20251122024148, <=0.7.8-next.0), @backstage/plugin-scaffolder-backend (>=0.0.0-nightly-20251123025211, <=3.1.1-next.0) +16 more potentially affected by CVE-2026-24046 via @backstage/plugin-scaffolder-node (>=0.12.0-next.0, <=0.12.2-next.1)

@backstage/plugin-scaffolder-node NPM version =0.12.0-next.0, =0.0.0-nightly-20251122024148, =0.0.0-nightly-20251123025211, =0.2.14-next.1, =0.3.15-next.1, =0.2.14-next.1, =0.2.14-next.1, =0.3.14-next.1, =0.0.0-nightly-20251123025211, =0.2.14-next.1, =0.2.14-next.1, =0.2.14-next.1, =0.9.1-next.1,...

@backstage/backend-dynamic-feature-service (>=0.0.0-nightly-20251122024148, <=0.7.8-next.0), @backstage/plugin-scaffolder-backend (>=0.0.0-nightly-20251123025211, <=3.1.1-next.0) +16 more potentially affected by CVE-2026-24046 via @backstage/plugin-scaffolder-node (>=0.12.0-next.0, <=0.12.2-next.1)

@backstage/plugin-scaffolder-node NPM version =0.12.0-next.0, =0.0.0-nightly-20251122024148, =0.0.0-nightly-20251123025211, =0.2.14-next.1, =0.3.15-next.1, =0.2.14-next.1, =0.2.14-next.1, =0.3.14-next.1, =0.0.0-nightly-20251123025211, =0.2.14-next.1, =0.2.14-next.1, =0.2.14-next.1, =0.9.1-next.1,...

GHSA-RQ6Q-WR2Q-7PGP Backstage has a Possible Symlink Path Traversal in Scaffolder Actions

Impact Multiple Scaffolder actions and archive extraction utilities were vulnerable to symlink-based path traversal attacks. An attacker with access to create and execute Scaffolder templates could exploit symlinks to: 1. Read arbitrary files via the debug:log action by creating a symlink pointin...

CVE-2026-24046 Backstage has a Possible Symlink Path Traversal in Scaffolder Actions

Backstage is an open framework for building developer portals. Multiple Scaffolder actions and archive extraction utilities were vulnerable to symlink-based path traversal attacks. An attacker with access to create and execute Scaffolder templates could exploit symlinks to read arbitrary files vi...

CVE-2026-24046

The Backstage framework is vulnerable to symlink-based path traversal attacks in multiple Scaffolder actions and archive extraction utilities . An attacker with permissions to create and execute Scaffolder templates can exploit these vulnerabilities to read arbitrary files (e.g., /etc/passwd, sec...

CVE-2026-24046 Backstage has a Possible Symlink Path Traversal in Scaffolder Actions

Backstage is an open framework for building developer portals. Multiple Scaffolder actions and archive extraction utilities were vulnerable to symlink-based path traversal attacks. An attacker with access to create and execute Scaffolder templates could exploit symlinks to read arbitrary files vi...

CVE-2026-24046

Backstage is an open framework for building developer portals. Multiple Scaffolder actions and archive extraction utilities were vulnerable to symlink-based path traversal attacks. An attacker with access to create and execute Scaffolder templates could exploit symlinks to read arbitrary files vi...

CVE-2026-24046 Backstage has a Possible Symlink Path Traversal in Scaffolder Actions

Backstage is an open framework for building developer portals. Multiple Scaffolder actions and archive extraction utilities were vulnerable to symlink-based path traversal attacks. An attacker with access to create and execute Scaffolder templates could exploit symlinks to read arbitrary files vi...

PT-2026-3875

Name of the Vulnerable Software and Affected Versions Backstage versions prior to 0.12.2, 0.13.2, 0.14.1, and 0.15.0 @backstage/plugin-scaffolder-backend versions prior to 2.2.2, 3.0.2, and 3.1.1 @backstage/plugin-scaffolder-node versions prior to 0.11.2 and 0.12.3 Description The software is...

Backstage Backlink Vulnerability

Backstage is an open-source application developed by Backstage. It serves as an open platform for building developer portals. Backstage has a postback link vulnerability, which stems from multiple Scaffolder operations and archive extraction tools being susceptible to path traversal attacks based...

CVE-2026-24046: Improper Limitation of a Pathname to a Restricted Directory

Backstage is an open framework for building developer portals. Multiple Scaffolder actions and archive extraction utilities were vulnerable to symlink-based path traversal attacks. An attacker with access to create and execute Scaffolder templates could exploit symlinks to read arbitrary files vi...

CVE-2021-41151

Backstage is an open platform for building developer portals. In affected versions A malicious actor could read sensitive files from the environment where Scaffolder Tasks are run. The attack is executed by crafting a custom Scaffolder template with a github:publish:pull-request action and a...