CVE-2026-126187 | BDVDB-2026-404713 Detail
reactreact
Description#
React is a JavaScript library for building user interfaces. From 19.0.0 until 19.0.9, 19.1.10, 19.2.9, and 19.3.1, the react-server-dom-webpack, react-server-dom-parcel, and react-server-dom-turbopack packages are vulnerable to unauthenticated remote code execution through crafted payloads targeting frameworks that support React Server Components. The vulnerability only affects extremely rare cases where responses transport multiple typed arrays and an attacker-controlled value. Applications whose React code does not use a server are not affected. Applications that do not use a framework, bundler, or bundler plugin that supports React Server Components are not affected. This issue is fixed in versions 19.0.9, 19.1.10, 19.2.9, and 19.3.1.
Impact#
Per CVSS v4.0: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.
Weaknesses#
- CWE-502 Deserialization of Untrusted Data
References#
- https://github.com/react/react/security/advisories/GHSA-xqc2-xf4c-x3h3
- https://github.com/react/react/pull/37842
- https://github.com/react/react/pull/37843
- https://github.com/react/react/pull/37844
- https://github.com/react/react/pull/37845
- https://github.com/react/react/pull/37846
- https://github.com/react/react/commit/0c9913ae87283f96e868a8f1c20a3389827632d0
- https://github.com/react/react/commit/249ac87b0dadea4ba024d1393e5cb60cf1186080
- https://github.com/react/react/commit/3d06b4005ac0cf9dec37267f26174adfe6d83611
- https://github.com/react/react/commit/611d9217df39cf7b8ac91b2e41fd00555923e904
- https://github.com/react/react/commit/61aa00df822d0eb76d0362eb8b6fdd3527693efe
- https://github.com/react/react/releases/tag/v19.0.9
- https://github.com/react/react/releases/tag/v19.1.10
- https://github.com/react/react/releases/tag/v19.2.9
- https://github.com/react/react/releases/tag/v19.3.1
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.