{"id":"CVE-2026-106510","title":"Backstage is an open framework for building developer portals","summary":"Backstage is an open framework for building developer portals. Prior to 1.14.6, the @backstage/plugin-techdocs-node package is affected by remote code execution via crafted markdown_extensions in techdocs mkdocs.yml. An authenticated use…","severity":"high","cvss":7.7,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L","cwe":["CWE-183","CWE-470"],"vendor":"backstage","product":"@backstage/plugin-techdocs-node","affected":["@backstage/plugin-techdocs-node < 1.15.4"],"patched":["@backstage/plugin-techdocs-node 1.15.4"],"published":"2026-10-07","updated":"2026-10-07","sourceUpdated":"2026-10-07T18:17:16.660","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-106510","references":[{"url":"https://github.com/backstage/backstage/commit/02cd7cdbb18b687446277b5602adaee7f1d53cbb","label":"security-advisories@github.com"},{"url":"https://github.com/backstage/backstage/commit/a900a9953c8f7ad3ba1906d1d257725a9996cc9d","label":"security-advisories@github.com"},{"url":"https://github.com/backstage/backstage/releases/tag/v1.50.5","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-4488-j8vj-vqqv","label":"security-advisories@github.com"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106510"},{"url":"https://github.com/advisories/GHSA-4488-j8vj-vqqv"}],"tags":["nvd","ghsa","npm","cve.org"],"aliases":["GHSA-4488-j8vj-vqqv"],"ecosystem":"npm","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-07T17:13:13.346488Z"},"ingestedAt":"2026-10-07T15:36:04.051Z","slug":"CVE-2026-106510","body":"## Overview\n\nBackstage is an open framework for building developer portals. Prior to 1.14.6, the @backstage/plugin-techdocs-node package is affected by remote code execution via crafted markdown_extensions in techdocs mkdocs.yml. An authenticated user who can register catalog entities can provide a crafted mkdocs.yml causing arbitrary OS command execution on the TechDocs build host when the docs are built. This issue is fixed in versions 1.14.6 and 1.15.4.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-106510)\n\nAffected packages:\n\n- `@backstage/plugin-techdocs-node < 1.15.4`\n\nPatched in:\n\n- `@backstage/plugin-techdocs-node 1.15.4`\n\nSource: https://github.com/advisories/GHSA-4488-j8vj-vqqv","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":42.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}