CVSS 4.0
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, само при определена конфигурация или състояние на системата, с обикновен потребителски вход и без действие от потребителя.
- Експлоатация: има публичен пример за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
Authorization Bypass Through User-Controlled Key vulnerability in elixir-grpc grpc allows authenticated attackers to access or modify resources belonging to other users by smuggling a conflicting value for any path-bound field via the query string or request body. In 'Elixir.GRPC.Server.Transcode':map_request/5 (lib/grpc/server/transcode.ex), all three clauses use Map.merge/2 with path bindings as the first argument, giving them the lowest merge precedence. A request such as GET /users/me/profile?user_id=victim (or a POST with {"user_id": "victim"} when body: "*") yields a decoded protobuf struct where the path-bound field carries the attacker-supplied value rather than the router-extracted value. Any handler that uses the path-bound field for authorization, multi-tenancy scoping, or ownership checks is silently bypassed. This issue affects grpc: from 0.8.0 before 1.0.0.
Засегнати продукти
- elixir-grpc grpc: 0.8.0 преди 1.0.0
- elixir-grpc grpc: 8aaf3d3a8c4c7b08ac65e9c6f254e0d24da1d048 преди 33b6a095dbc91c6dee3c7b90893d7d74952e82e4
Вид слабост
История
- 15 юни 2026 Публикувано
Други уязвимости в elixir-grpc grpc
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-48599
- https://nvd.nist.gov/vuln/detail/CVE-2026-48599
- https://github.com/elixir-grpc/grpc/security/advisories/GHSA-mwr4-5g34-j5cq
- https://cna.erlef.org/cves/CVE-2026-48599.html
- https://osv.dev/vulnerability/EEF-CVE-2026-48599
- https://github.com/elixir-grpc/grpc/commit/8aaf3d3a8c4c7b08ac65e9c6f254e0d24da1d048
- https://github.com/elixir-grpc/grpc/commit/33b6a095dbc91c6dee3c7b90893d7d74952e82e4