parse-server new anonymous user session acts as if it's created with password

TRUNG BÌNH 6.5CVE-2021-39138 · BIT-parse-2021-39138 · GHSA-23r4-5mxp-c7g5 · Công bố 19/08/2021 · cập nhật 17/06/2026

Tóm tắt nhanh

CVE-2021-39138 là lỗ hổng mức TRUNG BÌNH (CVSS 6.5) ảnh hưởng parse-server (parseplatform), parse-server.
Xác suất bị khai thác trong 30 ngày tới (EPSS): 0.99%, cao hơn 62.6% các lỗ hổng khác.
Cách xử lý: cập nhật lên 4.5.1, 4.5.2 hoặc mới hơn.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
parse-server parseplatform	`< 4.5.1`	`4.5.1`
parse-server npm	`< 4.5.2`	`4.5.2`

Mô tả

Impact

Developers that use the REST API to signup users and also allow users to login anonymously. When an anonymous user is first signed up using REST, the server creates session incorrectly, particularly the authProvider field in _Session class under createdWith shows the user logged in creating a password. If a developer later depends on the createdWith field to provide a different level of access between a password user and anonymous user, the server incorrectly classified the session type as being created with a password.

The server currently doesn't use createdWith to make decisions on how things work internally, so if a developer isn't using createdWith directly, there's nothing to worry about. The vulnerability only affects users who depend on createdWith by using it directly.

Patches

Upgrade to version 4.5.1.

Workarounds

Don't use the createdWith Session field to make decisions if you allow anonymous login.

References

n/a

Mô tả của NVD

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Developers can use the REST API to signup users and also allow users to login anonymously. Prior to version 4.5.1, when an anonymous user is first signed up using REST, the server creates session incorrectly. Particularly, the `authProvider` field in `_Session` class under `createdWith` shows the user logged in creating a password. If a developer later depends on the `createdWith` field to provide a different level of access between a password user and anonymous user, the server incorrectly classified the session type as being created with a `password`. The server does not currently use `createdWith` to make decisions about internal functions, so if a developer is not using `createdWith` directly, they are not affected. The vulnerability only affects users who depend on `createdWith` by using it directly. The issue is patched in Parse Server version 4.5.1. As a workaround, do not use the `createdWith` Session field to make decisions if one allows anonymous login.