Parse Server LiveQuery subscription with invalid regular expression crashes server

CAO 7.5CVE-2026-32770 · BIT-parse-2026-32770 · GHSA-827p-g5x5-h86c · Công bố 18/03/2026 · cập nhật 17/06/2026

Tóm tắt nhanh

CVE-2026-32770 là lỗ hổng mức CAO (CVSS 7.5) ảnh hưởng parse-server (parseplatform), parse-server.
Xác suất bị khai thác trong 30 ngày tới (EPSS): 0.57%, cao hơn 47.3% các lỗ hổng khác.
Cách xử lý: cập nhật lên 9.6.0, 8.6.43, 9.6.0-alpha.19 hoặc mới hơn.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
parse-server parseplatform	`= 9.6.0≥ 9.0.0, < 9.6.0< 8.6.43`	`9.6.08.6.43`
parse-server npm	`≥ 9.0.0, < 9.6.0-alpha.19< 8.6.43`	`9.6.0-alpha.198.6.43`

Mô tả

Impact

A remote attacker can crash the Parse Server by subscribing to a LiveQuery with an invalid regular expression pattern. The server process terminates when the invalid pattern reaches the regex engine during subscription matching, causing denial of service for all connected clients.

Patches

The fix validates regular expression patterns at subscription time, rejecting invalid patterns before they are stored. Additionally, a defense-in-depth try-catch prevents any subscription matching error from crashing the server process.

Workarounds

Disable LiveQuery if it is not needed.

Mô tả của NVD

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.19 and 8.6.43, a remote attacker can crash the Parse Server by subscribing to a LiveQuery with an invalid regular expression pattern. The server process terminates when the invalid pattern reaches the regex engine during subscription matching, causing denial of service for all connected clients. The fix in 9.6.0-alpha.19 and 8.6.43 validates regular expression patterns at subscription time, rejecting invalid patterns before they are stored. Additionally, a defense-in-depth try-catch prevents any subscription matching error from crashing the server process. As a workaround, disable LiveQuery if it is not needed.