CVE-2026-106560: Path Traversal (CVSS 7.1)

Description

Backstage is an open framework for building developer portals. Prior to 0.3.25, the @backstage/plugin-scaffolder-backend-module-confluence-to-markdown package is affected by improper repository path validation in a scaffolder backend module. 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. This issue is fixed in version 0.3.25.

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CVSS v3.1 Score

7.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

Weakness Type (CWE)

CWE-22 Path Traversal

References

Other References

https://github.com/backstage/backstage/commit/5f0000c1d0af05571e357926b3fa33a453337ff0 https://github.com/backstage/backstage/releases/tag/v1.54.6 https://github.com/backstage/backstage/security/advisories/GHSA-2cmg-v53w-8xfp

Frequently Asked Questions

What is CVE-2026-106560? +

Backstage is an open framework for building developer portals. Prior to 0.3.25, the @backstage/plugin-scaffolder-backend-module-confluence-to-markdown package is affected by improper repository path validation in a scaffolder backend module. 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. This issue is fixed in version 0.3.25. It has a CVSS v3.1 base score of 7.1 (HIGH).

How severe is CVE-2026-106560? +

CVE-2026-106560 has a CVSS v3.1 score of 7.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

How do I check if I'm vulnerable to CVE-2026-106560? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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