{"id":"CVE-2026-32237","aliases":["EUVD-2026-11675","GHSA-8wq8-6859-qx77"],"status":"published","title":"@backstage/plugin-scaffolder-backend: Possible exposure of defaultEnvironment secrets using dry-run endpoint","description":"Backstage is an open framework for building developer portals. Prior to 3.1.5, authenticated users with permission to execute scaffolder dry-runs can gain access to server-configured environment secrets through the dry-run API response. Secrets are properly redacted in log output but not in all parts of the response payload. Deployments that have configured scaffolder.defaultEnvironment.secrets are affected. This is patched in @backstage/plugin-scaffolder-backend version 3.1.5.","severity":{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00284,"percentile":0.21148,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-200"],"published":"2026-03-12T14:51:06Z","modified":"2026-10-28T02:30:58Z","fixes":[{"ecosystem":"npm","package":"@backstage/plugin-scaffolder-backend","fixed_in":["3.1.5"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"@backstage/plugin-scaffolder-backend","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.1.0"},{"fixed":"3.1.5"}]}]},{"source":"osv","ecosystem":"npm","package":"@backstage/plugin-scaffolder-backend","ranges":[{"type":"SEMVER","events":[{"introduced":"3.1.0"},{"fixed":"3.1.5"}]}]}],"products":[{"vendor":"@backstage","product":"plugin-scaffolder-backend"},{"vendor":"linuxfoundation","product":"backstage\\/plugin-scaffolder-backend"}],"references":[{"url":"https://github.com/backstage/backstage/security/advisories/GHSA-8wq8-6859-qx77","tags":["x_refsource_CONFIRM","Vendor Advisory","advisory","web"]},{"url":"https://github.com/backstage/backstage/commit/3b62dd2d6bf7623ebd23e4b5a6dceb209f98dfce","tags":["x_refsource_MISC","Patch","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32237","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-8wq8-6859-qx77"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32237.json","tags":["advisory"]},{"url":"https://github.com/backstage/backstage","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-32237","title":"@backstage/plugin-scaffolder-backend: Possible exposure of defaultEnvironment secrets using dry-run endpoint","description":"Backstage is an open framework for building developer portals. Prior to 3.1.5, authenticated users with permission to execute scaffolder dry-runs can gain access to server-configured environment secrets through the dry-run API response. Secrets are properly redacted in log output but not in all parts of the response payload. Deployments that have configured scaffolder.defaultEnvironment.secrets are affected. This is patched in @backstage/plugin-scaffolder-backend version 3.1.5.","status":"published","published":"2026-03-12T18:38:57.156Z","modified":"2026-03-12T20:46:35.503Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:19:57.100857Z"}],"euvd":[{"id":"EUVD-2026-11675","description":"Backstage is an open framework for building developer portals. Prior to 3.1.5, authenticated users with permission to execute scaffolder dry-runs can gain access to server-configured environment secrets through the dry-run API response. Secrets are properly redacted in log output but not in all parts of the response payload. Deployments that have configured scaffolder.defaultEnvironment.secrets are affected. This is patched in @backstage/plugin-scaffolder-backend version 3.1.5.","status":"published","published":"2026-03-12T18:38:57Z","modified":"2026-03-12T20:46:35Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T19:25:35.389351Z"}],"ghsa":[{"id":"GHSA-8wq8-6859-qx77","title":"@backstage/plugin-scaffolder-backend: Possible exposure of defaultEnvironment secrets using dry-run endpoint","description":"### Impact                                                                                                                                                                         \n                                         \n  Authenticated users with permission to execute scaffolder dry-runs can gain access to server-configured environment secrets through the dry-run API response. Secrets are properly \n  redacted in log output but not in all parts of the response payload.\n                                                                                                                                                                                     \n  Deployments that have configured `scaffolder.defaultEnvironment.secrets` are affected.\n                          \n  ### Patches                            \n\n  This is patched in `@backstage/plugin-scaffolder-backend` version 3.1.5\n  ### Workarounds\n\n  Remove or empty the `scaffolder.defaultEnvironment.secrets` configuration from `app-config.yaml`. Alternatively, restrict access to the scaffolder dry-run functionality via the\n  permissions framework.\n\n  ### References\n\n  - [Backstage Scaffolder Backend documentation](https://backstage.io/docs/features/software-templates/)","status":"published","published":"2026-03-12T14:51:06Z","modified":"2026-03-13T13:35:52Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:39:35.644357Z"}],"nvd":[{"id":"CVE-2026-32237","description":"Backstage is an open framework for building developer portals. Prior to 3.1.5, authenticated users with permission to execute scaffolder dry-runs can gain access to server-configured environment secrets through the dry-run API response. Secrets are properly redacted in log output but not in all parts of the response payload. Deployments that have configured scaffolder.defaultEnvironment.secrets are affected. This is patched in @backstage/plugin-scaffolder-backend version 3.1.5.","status":"published","published":"2026-03-12T19:16:19.04Z","modified":"2026-06-17T10:35:24.127Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:12:09.358914Z"}],"osv":[{"id":"CVE-2026-32237","title":"@backstage/plugin-scaffolder-backend: Possible exposure of defaultEnvironment secrets using dry-run endpoint","description":"Backstage is an open framework for building developer portals. Prior to 3.1.5, authenticated users with permission to execute scaffolder dry-runs can gain access to server-configured environment secrets through the dry-run API response. Secrets are properly redacted in log output but not in all parts of the response payload. Deployments that have configured scaffolder.defaultEnvironment.secrets are affected. This is patched in @backstage/plugin-scaffolder-backend version 3.1.5.","status":"published","published":"2026-03-12T18:38:57.156Z","modified":"2026-10-28T02:30:58.165899503Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T15:45:01.218144Z"},{"id":"GHSA-8wq8-6859-qx77","title":"@backstage/plugin-scaffolder-backend: Possible exposure of defaultEnvironment secrets using dry-run endpoint","description":"### Impact                                                                                                                                                                         \n                                         \n  Authenticated users with permission to execute scaffolder dry-runs can gain access to server-configured environment secrets through the dry-run API response. Secrets are properly \n  redacted in log output but not in all parts of the response payload.\n                                                                                                                                                                                     \n  Deployments that have configured `scaffolder.defaultEnvironment.secrets` are affected.\n                          \n  ### Patches                            \n\n  This is patched in `@backstage/plugin-scaffolder-backend` version 3.1.5\n  ### Workarounds\n\n  Remove or empty the `scaffolder.defaultEnvironment.secrets` configuration from `app-config.yaml`. Alternatively, restrict access to the scaffolder dry-run functionality via the\n  permissions framework.\n\n  ### References\n\n  - [Backstage Scaffolder Backend documentation](https://backstage.io/docs/features/software-templates/)","status":"published","published":"2026-03-12T14:51:06Z","modified":"2026-03-14T01:56:22.133571Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T15:46:42.78452Z"}]}}