Answer in brief
CVE-2026-23869 records a High severity (CVSS 7.5) vulnerability in CISA ADP Vulnrichment. The current sources do not mark it as known exploited. The current feed maps Meta/react-server-dom-parcel (generic), Meta/react-server-dom-turbopack (generic), Meta/react-server-dom-webpack (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Meta/react-server-dom-parcel (generic), Meta/react-server-dom-turbopack (generic), Meta/react-server-dom-webpack (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Meta/react-server-dom-parcelgeneric | 19.0.0 || 19.1.0 || 19.2.0 | Not reported |
| Meta/react-server-dom-turbopackgeneric | 19.0.0 || 19.1.0 || 19.2.0 | Not reported |
| Meta/react-server-dom-webpackgeneric | 19.0.0 || 19.1.0 || 19.2.0 | Not reported |
Published upstream
Apr 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 15, 2026
A denial of service vulnerability exists in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack and react-server-dom-webpack (versions 19.0.0 through 19.0.4, 19.1.0 through 19.1.5, and 19.2.0 through 19.2.4). The vulnerability is triggered by sending specially crafted HTTP requests to Server Function endpoints.The payload of the HTTP request causes excessive CPU usage for up to a minute ending in a thrown error that is catchable.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-23869 records a High severity (CVSS 7.5) vulnerability in CISA ADP Vulnrichment. The current sources do not mark it as known exploited. The current feed maps Meta/react-server-dom-parcel (generic), Meta/react-server-dom-turbopack (generic), Meta/react-server-dom-webpack (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Meta/react-server-dom-parcel (generic), Meta/react-server-dom-turbopack (generic), Meta/react-server-dom-webpack (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Meta/react-server-dom-parcelgeneric | 19.0.0 || 19.1.0 || 19.2.0 | Not reported |
| Meta/react-server-dom-turbopackgeneric | 19.0.0 || 19.1.0 || 19.2.0 | Not reported |
| Meta/react-server-dom-webpackgeneric | 19.0.0 || 19.1.0 || 19.2.0 | Not reported |
Published upstream
Apr 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 15, 2026
A denial of service vulnerability exists in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack and react-server-dom-webpack (versions 19.0.0 through 19.0.4, 19.1.0 through 19.1.5, and 19.2.0 through 19.2.4). The vulnerability is triggered by sending specially crafted HTTP requests to Server Function endpoints.The payload of the HTTP request causes excessive CPU usage for up to a minute ending in a thrown error that is catchable.
Quoted source text, attributed separately from HOL analysis.