{"id":"CVE-2026-106505","revision":"4cfb41cd777b4ed893ae7fdabc2e23e5","records":[{"revision":"4cfb41cd777b4ed893ae7fdabc2e23e5","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-106505","aliases":[],"title":"Backstage: Bypass of MkDocs configuration sanitizer in TechDocs backend","description":"Backstage is an open framework for building developer portals. Prior to 1.14.6 and 1.15.4, the @backstage/plugin-techdocs-node package is affected by bypass of mkdocs configuration sanitizer in techdocs backend. Users with the ability to commit changes to a repository that uses TechDocs can circumvent the MkDocs configuration file sanitizer introduced in response to CVE-2026-25153 and execute arbitrary code on the TechDocs backend host during documentation generation. This issue is fixed in versions 1.14.6 and 1.15.4.","state":0,"publishedAt":"2026-10-06T21:43:08.37+00:00","modifiedAt":"2026-10-07T16:14:14.192+00:00","affected":[{"ecosystem":"Vendor product","name":"backstage","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"backstage\",\n                    \"product\": \"backstage\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 1.50.5\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 1.51.0-next.0, < 1.54.6\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"plugin-techdocs-node","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"@backstage\",\n                    \"product\": \"plugin-techdocs-node\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 1.14.6\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 1.15.0, < 1.15.4\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L","score":7.7,"severity":"HIGH"}],"references":["https://github.com/backstage/backstage/security/advisories/GHSA-p75x-jh7p-ppcx","https://github.com/backstage/backstage/commit/a7d995f11a5d27f0efbdbe8bb6c21b06988c79c9","https://github.com/backstage/backstage/commit/ef92d3d2b76046205c580e7152956514c15640db","https://github.com/backstage/backstage/releases/tag/v1.50.5","https://github.com/backstage/backstage/releases/tag/v1.54.6"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-106505","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-106505","identifiers":["CVE-2026-106505"]},"retained":false,"historicalAffected":[]}],"coverage":[]}