BlackTreeCVE IntelligenceMeta · react-server-dom-webpack
Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.
These OSV and GitHub advisory ranges apply only to the named package and ecosystem. A listed fixed version is not a universal product patch or proof that an update is installed.
| Ecosystem and package | Affected range | First fixed version | Evidence |
|---|---|---|---|
| npmreact-server-dom-parcel | >= 19.0.0, < 19.0.2 | 19.0.2 | GitHub advisory ↗upstream repository advisory · 11 Dec 2025 |
| npmreact-server-dom-parcel | >= 19.1.0, < 19.1.3 | 19.1.3 | GitHub advisory ↗upstream repository advisory · 11 Dec 2025 |
| npmreact-server-dom-parcel | >= 19.2.0, < 19.2.2 | 19.2.2 | GitHub advisory ↗upstream repository advisory · 11 Dec 2025 |
| npmreact-server-dom-turbopack | >= 19.0.0, < 19.0.2 | 19.0.2 | GitHub advisory ↗upstream repository advisory · 11 Dec 2025 |
| npmreact-server-dom-turbopack | >= 19.1.0, < 19.1.3 | 19.1.3 | GitHub advisory ↗upstream repository advisory · 11 Dec 2025 |
| npmreact-server-dom-turbopack | >= 19.2.0, < 19.2.2 | 19.2.2 | GitHub advisory ↗upstream repository advisory · 11 Dec 2025 |
| npmreact-server-dom-webpack | >= 19.0.0, < 19.0.2 | 19.0.2 | GitHub advisory ↗upstream repository advisory · 11 Dec 2025 |
| npmreact-server-dom-webpack | >= 19.1.0, < 19.1.3 | 19.1.3 | GitHub advisory ↗upstream repository advisory · 11 Dec 2025 |
| npmreact-server-dom-webpack | >= 19.2.0, < 19.2.2 | 19.2.2 | GitHub advisory ↗upstream repository advisory · 11 Dec 2025 |
Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.
Mitigation availableAn information leak vulnerability exists in specific configurations of React Server Components versions 19.0.0, 19.0.1 19.1.0, 19.1.1, 19.1.2, 19.2.0 and 19.2.1, including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. A specifically crafted HTTP request sent to a vulnerable Server Function may unsafely return the source code of any Server Function. Exploitation requires the existence of a Server Function which explicitly or implicitly exposes a stringified argument.
An information leak vulnerability exists in specific configurations of React Server Components versions 19.0.0, 19.0.1 19.1.0, 19.1.1, 19.1.2, 19.2.0 and 19.2.1, including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. A specifically crafted HTTP request sent to a vulnerable Server Function may unsafely return the source code of any Server Function. Exploitation requires the existence of a Server Function which explicitly or implicitly exposes a stringified argument.
Attacker-influenced serialised data is reconstructed as trusted objects, which can invoke dangerous application behaviour.
An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
An information leak vulnerability exists in specific configurations of React Server Components versions 19.0.0, 19.0.1 19.1.0, 19.1.1, 19.1.2, 19.2.0 and 19.2.1, including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. A specifically crafted HTTP request sent to a vulnerable Server Function may unsafely return the source code of any Server Function. Exploitation requires the existence of a Server Function which explicitly or implicitly exposes a stringified argument.
Attacker-influenced serialised data is reconstructed as trusted objects, which can invoke dangerous application behaviour.
An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.
No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.
A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.
CWE-502: Deserialization of Untrusted Data. The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NCommon Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
Operational remediation based on structured source evidence.
Published 11 Dec 2025 · Last source change 7 Jan 2026, 16:26 UTC · CWE-502 · Deserialization of Untrusted Data
Core structured fields are present and their contributing authorities are shown above.