CVE-2026-106560

Backstage: Improper repository path validation in a Scaffolder backend module

Workarounds

• Restrict execution of templates using the affected action to trusted users.
• Remove or disable the affected action until the patched package is deployed.

An authenticated user who can execute an affected template and control its repository file location may cause generated content to be written outside the task workspace, within locations writable by the Backstage backend process.

Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files. Typical impact: unauthorized file read or write outside the intended directory.

CVE-2026-106560 has a CVSS score of 7.1 (High). The vector is network-reachable, low privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (0.3.25); upgrading removes the vulnerable code path.

Kodem intelligence

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Patched in @backstage/plugin-scaffolder-backend-module-confluence-to-markdown version 0.3.25

1. What is CVE-2026-106560? CVE-2026-106560 is a high-severity path traversal vulnerability in @backstage/plugin-scaffolder-backend-module-confluence-to-markdown (npm), affecting versions < 0.3.25. It is fixed in 0.3.25. Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files.
2. How severe is CVE-2026-106560? CVE-2026-106560 has a CVSS score of 7.1 (High). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which versions of @backstage/plugin-scaffolder-backend-module-confluence-to-markdown are affected by CVE-2026-106560? @backstage/plugin-scaffolder-backend-module-confluence-to-markdown (npm) versions < 0.3.25 is affected.
4. Is there a fix for CVE-2026-106560? Yes. CVE-2026-106560 is fixed in 0.3.25. Upgrade to this version or later.
5. Is CVE-2026-106560 exploitable, and should I be worried? Whether CVE-2026-106560 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether CVE-2026-106560 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix CVE-2026-106560? Upgrade @backstage/plugin-scaffolder-backend-module-confluence-to-markdown to 0.3.25 or later.

Other vulnerabilities in @backstage/plugin-scaffolder-backend-module-confluence-to-markdown