rucio has an Authorization Bypass on REST API endpoint for signing URLs

影響: pip:rucio >= 1.16.1, < 35.9.0 → 35.9.0, pip:rucio >= 36.0.0rc1, < 38.6.0 → 38.6.0, pip:rucio >= 39.0.0rc1, < 41.0.0rc1 → 41.0.0rc1

The /credentials/signurl endpoint decides authorization from the client-supplied X-Rucio-Account HTTP header instead of the authenticated token's account. Any client holding any valid auth token (even a low-privilege account they legitimately own) can send X-Rucio-Account: root to pass the root-only permission check and have the Rucio server mint a presigned read / write / delete URL for an arbitrary object, signed with the RSE's stored S3 / GCS / Swift credentials. Details SignURL.get() takes…

GitHub Advisory Databaseで読む

2026/10/29 04:50、GitHub Advisory Databaseが「rucio has an Authorization Bypass on REST API endpoint for signing URLs」を公開しました (種別: 脆弱性アドバイザリ)。重大度は「重要」(high) です。関連する技術: Python、Swift。CVE: CVE-2026-58273。