{"schema":"threatline.record/2","record":{"id":"CVE-2026-106462","aliases":["GHSA-29gx-h2m3-xw44"],"summary":"Backstage's scaffolder credential handling may allow unintended GitHub authentication fallback","details":"### Impact\n\nScaffolder actions that interact with source control systems may not consistently enforce the intended credential boundaries under certain configurations. An authenticated user could perform operations with broader access than intended.\n\n### Patches\n\n- `@backstage/plugin-scaffolder-backend` version `4.1.0`\n- `@backstage/plugin-scaffolder-backend-module-azure` version `0.2.25`\n- `@backstage/plugin-scaffolder-backend-module-bitbucket-cloud` version `0.3.10`\n- `@backstage/plugin-scaffolder-backend-module-bitbucket-server` version `0.2.25`\n- `@backstage/plugin-scaffolder-backend-module-github` version `0.9.13`\n- `@backstage/plugin-scaffolder-backend-module-gitlab` version `0.11.10`\n\nThe fix introduces a new configuration option that enforces user-provided credentials for supported SCM actions. The new behavior is opt-in for compatibility. After upgrading, set:\n\n```yaml\nscaffolder:\n  requireScmUserCredentials: true\n```\n\nBefore enabling this setting, review and update your templates as described in the software templates documentation referred to below.\n\n### Workarounds\n\nIf you cannot upgrade and enable the setting immediately:\n\n- Restrict who can create Scaffolder tasks and which templates they can execute.\n- Limit SCM integration credentials to the minimum repository read and mutation permissions required.\n- Remove integration credentials for SCM hosts where all required operations can use explicitly supplied user tokens.","categories":["Libraries & packages"],"product":"@backstage/plugin-scaffolder-backend","vendor":"backstage","ecosystem":"npm","affected_ranges":[{"source":"GitHub Advisory 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