Open actionable advisories and recorded vendor fixes. This public package view has no inventory attached and cannot establish whether your deployment is affected. A vendor fix never resolves your finding; verify your installed version and the source guidance.
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2 actionable advisories, newest first. Withdrawn advisories and news are excluded. Coverage is partial.
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 pointing to sensitive files (e.g., /etc/passwd, configuration files, secrets) 2. Delete arbitrary files via the fs:delete action by creating symlinks pointing outside the workspace 3. Write files outside the workspace via archive extraction (tar/zip) containing malicious symlinks This affects any Backstage deployment where users can create or execute Scaffolder templates. Patches This vulnerability is fixed in the following package versions: - @backstage/backend-defaults version 0.12.2, 0.13.2, 0.14.1, 0.15.0 - @backstage/plugin-scaffolder-backend version 2.2.2, 3.0.2, 3.1.1 - @backstage/plugin-scaffolder-node version 0.11.2, 0.12.3 Users should upgrade to these versions or later. Workarounds -…
Recommended action: Upgrade to 0.12.3 or 0.11.2 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.
Impact A vulnerability is identified in Backstage Scaffolder template functionality where Server-Side Template Injection (SSTI) can be exploited to perform Git config injection. The vulnerability allows an attacker to capture privileged git tokens used by the Backstage Scaffolder plugin. With these tokens, unauthorized access to sensitive resources in git can be achieved. The impact is considered medium severity as the Backstage Threat Model recommends restricting access to adding and editing templates in the Backstage Catalog plugin. Patches The issue has been resolved in versions v0.4.12, v0.5.1 and v0.6.1 of the @backstage/plugin-scaffolder-node package. Users are encouraged to upgrade to this version to mitigate the vulnerability. Workarounds Users can ensure that templates do not change git config. References If you have any questions or comments about this advisory: Open an issue in the Backstage repository Visit our Discord, linked to in Backstage README
Recommended action: Upgrade to 0.6.1, 0.5.1 or 0.4.12 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.