{"id":"CVE-2026-106560","title":"Backstage is an open framework for building developer portals","summary":"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 mod…","severity":"high","cvss":7.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L","cwe":["CWE-22"],"vendor":"backstage","product":"@backstage/plugin-scaffolder-backend-module-confluence-to-markdown","affected":["@backstage/plugin-scaffolder-backend-module-confluence-to-markdown < 0.3.25"],"patched":["@backstage/plugin-scaffolder-backend-module-confluence-to-markdown 0.3.25"],"published":"2026-10-07","updated":"2026-10-07","sourceUpdated":"2026-10-07T18:17:17.120","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-106560","references":[{"url":"https://github.com/backstage/backstage/commit/5f0000c1d0af05571e357926b3fa33a453337ff0","label":"security-advisories@github.com"},{"url":"https://github.com/backstage/backstage/releases/tag/v1.54.6","label":"security-advisories@github.com"},{"url":"https://github.com/backstage/backstage/security/advisories/GHSA-2cmg-v53w-8xfp","label":"security-advisories@github.com"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106560"},{"url":"https://github.com/advisories/GHSA-2cmg-v53w-8xfp"}],"tags":["nvd","ghsa","npm","cve.org"],"aliases":["GHSA-2cmg-v53w-8xfp"],"ecosystem":"npm","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-07T17:11:06.307755Z"},"ingestedAt":"2026-10-07T15:36:04.053Z","slug":"CVE-2026-106560","body":"## Overview\n\nBackstage 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-106560)\n\nAffected packages:\n\n- `@backstage/plugin-scaffolder-backend-module-confluence-to-markdown < 0.3.25`\n\nPatched in:\n\n- `@backstage/plugin-scaffolder-backend-module-confluence-to-markdown 0.3.25`\n\nSource: https://github.com/advisories/GHSA-2cmg-v53w-8xfp","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}