Rembg: Unauthenticated SAM model injection permits local-file disclosure through malicious ONNX graphs

影響: pip:rembg < 2.0.82 → 2.0.82

The public /api/remove endpoint uses attacker-controlled extras.sam_model in both SAM filenames and GitHub download URLs. Path traversal plus a URL fragment lets an unauthenticated attacker place malicious ONNX models beside a target file. The models read the file as ONNX external data and encode its bytes into the returned PNG. This issue affects SAM's sam_model in 2.0.81 and returns complete file contents. Screenshot 1 — First unauthenticated request primes the path and returns HTTP 500. Tech…

GitHub Advisory Databaseで読む

2026/10/27 23:45、GitHub Advisory Databaseが「Rembg: Unauthenticated SAM model injection permits local-file disclosure through malicious ONNX graphs」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。CVE: CVE-2026-115924。