{"cve":"CVE-2026-106560","nvd":{"published":"2026-10-07T15:17:17.310","modified":"2026-10-16T15:05:34.987","status":"Analyzed","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","score":6.5},"cwes":["CWE-22"],"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"],"products":["linuxfoundation:backstage","linuxfoundation:backstage\\/plugin-scaffolder-backend-module-confluence-to-markdown"],"source":"nvd","synced_at":"2026-10-19T22:58:01.639778232+00:00"},"epss":{"cve":"CVE-2026-106560","score":0.00314,"percentile":0.24124,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-2cmg-v53w-8xfp","url":"https://osv.dev/vulnerability/GHSA-2cmg-v53w-8xfp","summary":"Backstage: Improper repository path validation in a Scaffolder backend module","modified":"2026-10-07T18:15:12.669705446Z","packages":[{"ecosystem":"npm","name":"@backstage/plugin-scaffolder-backend-module-confluence-to-markdown","purl":"pkg:npm/%40backstage/plugin-scaffolder-backend-module-confluence-to-markdown","ranges":["<0.3.25"],"fixed":["0.3.25"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}