CVE-2026-29184

Summary: CVE-2026-29184 affects Backstage, specifically the @backstage/plugin-scaffolder-backend. Before version 3.1.4, a malicious scaffolder template can bypass the log redaction mechanism, enabling exfiltration of secrets from task event logs. The issue is addressed in version 3.1.4. What is a...

CVE-2026-29184 @backstage/plugin-scaffolder-backend: Potential Session Token Exfiltration via Log Redaction Bypass

Backstage is an open framework for building developer portals. Prior to version 3.1.4, a malicious scaffolder template can bypass the log redaction mechanism to exfiltrate secrets provided run through task event logs. This issue has been patched in version 3.1.4...

CVE-2026-29184

Backstage is an open framework for building developer portals. Prior to version 3.1.4, a malicious scaffolder template can bypass the log redaction mechanism to exfiltrate secrets provided run through task event logs. This issue has been patched in version 3.1.4...

CVE-2026-29184 @backstage/plugin-scaffolder-backend: Potential Session Token Exfiltration via Log Redaction Bypass

Backstage is an open framework for building developer portals. Prior to version 3.1.4, a malicious scaffolder template can bypass the log redaction mechanism to exfiltrate secrets provided run through task event logs. This issue has been patched in version 3.1.4...

CVE-2026-29184 @backstage/plugin-scaffolder-backend: Potential Session Token Exfiltration via Log Redaction Bypass

Backstage is an open framework for building developer portals. Prior to version 3.1.4, a malicious scaffolder template can bypass the log redaction mechanism to exfiltrate secrets provided run through task event logs. This issue has been patched in version 3.1.4...

@backstage/plugin-scaffolder-backend Vulnerable to Potential Session Token Exfiltration via Log Redaction Bypass

Impact A malicious scaffolder template can bypass the log redaction mechanism to exfiltrate secrets provided run through task event logs. The attack requires: - The ability to register a template in the catalog - A victim who executes the malicious template Patches Patched in...

GHSA-8QP7-FHR9-FW53 @backstage/plugin-scaffolder-backend Vulnerable to Potential Session Token Exfiltration via Log Redaction Bypass

Impact A malicious scaffolder template can bypass the log redaction mechanism to exfiltrate secrets provided run through task event logs. The attack requires: - The ability to register a template in the catalog - A victim who executes the malicious template Patches Patched in...

Insertion of Sensitive Information into Log File

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 Insertion of Sensitive Information into Log File via the log redaction mechanism in task event logs. An attacker can access sensitiv...

PT-2026-23439

Name of the Vulnerable Software and Affected Versions Backstage versions prior to 3.1.4 Description Backstage is a framework for building developer portals. A malicious scaffolder template can bypass the log redaction mechanism, potentially exposing secrets provided through task event logs. The...

CVE-2026-24046

A flaw was found in Backstage. A symlink-based path traversal issue can be exploited in multiple Scaffolder actions and archive extraction utilities during template execution via malicious symlinks. An attacker with access to create and execute Scaffolder templates can read sensitive files, delet...

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-2026-24047

Backstage is an open framework for building developer portals, and @backstage/cli-common provides config loading functionality used by the backend and command line interface of Backstage. Prior to version 0.1.17, the resolveSafeChildPath utility function in @backstage/backend-plugin-api, which is...

CVE-2026-24047

Backstage is an open framework for building developer portals, and @backstage/cli-common provides config loading functionality used by the backend and command line interface of Backstage. Prior to version 0.1.17, the resolveSafeChildPath utility function in @backstage/backend-plugin-api, which is...

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...

EUVD-2026-4137

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

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/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...

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...

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...

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,...