{"id":"CVE-2026-106499","revision":"3a55e3d0c74b4271b801c3067ce9f55c","records":[{"revision":"3a55e3d0c74b4271b801c3067ce9f55c","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-106499","aliases":[],"title":"Backstage: Secret-derived values may be exposed in scaffolder task logs","description":"Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package could expose secret-derived values in Scaffolder task logs. Deployments that configure sensitive scaffolder.defaultEnvironment.secrets and allow an attacker to create or modify Scaffolder templates are affected. A template author could cause secret-derived values used during template iteration to be persisted and exposed to users who can access the resulting task logs. This issue is fixed in version 4.1.0.","state":0,"publishedAt":"2026-10-06T21:25:56.166+00:00","modifiedAt":"2026-10-07T17:46:09.812+00:00","affected":[{"ecosystem":"Vendor product","name":"backstage","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"backstage\",\n                    \"product\": \"backstage\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 1.54.6\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"plugin-scaffolder-backend","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"@backstage\",\n                    \"product\": \"plugin-scaffolder-backend\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 4.1.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","score":4.9,"severity":"MEDIUM"}],"references":["https://github.com/backstage/backstage/security/advisories/GHSA-mfvq-x7vr-rgqg","https://github.com/backstage/backstage/commit/dc30fae2d96cb1606d36cc40b242f9b9e539bd70","https://github.com/backstage/backstage/releases/tag/v1.54.6"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-106499","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-106499","identifiers":["CVE-2026-106499"]},"retained":false,"historicalAffected":[]}],"coverage":[]}