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CVE-2026-44907

HIGH
7.5
CVSS Score
Published: July 21, 2026 at 04:03 PM UTC
Updated: July 21, 2026 at 08:36 PM UTC
3 products affected across 1 vendorReact Server Dom WebpackReact Server Dom ParcelReact Server Dom Turbopack

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Severity
HIGH7.5
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

A denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could lead to excessive CPU usage; affecting the following packages: react-server-dom-webpack, react-server-dom-parcel, react-server-dom-turbopack (versions 19.0.0 through 19.0.7, 19.1.0 through 19.1.8, and 19.2.0 through 19.2.7).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

React Server Dom Parcel· Facebooknpm
60%
19.0.0 ≤ v ≤ 19.0.719.1.0 ≤ v ≤ 19.1.819.2.0 ≤ v ≤ 19.2.719.0.019.1.019.2.0
React Server Dom Turbopack· Facebooknpm
60%
19.0.0 ≤ v ≤ 19.0.719.1.0 ≤ v ≤ 19.1.819.2.0 ≤ v ≤ 19.2.719.0.019.1.019.2.0
React Server Dom Webpack· Facebooknpm
60%
19.0.0 ≤ v ≤ 19.0.719.1.0 ≤ v ≤ 19.1.819.2.0 ≤ v ≤ 19.2.719.0.019.1.019.2.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRM
Source: cverecord
https://github.com/react/react/security/advisories/GHSA-wx67-qw84-cm4g

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHMeta
Vector?

Quick Info

StatusAWAITING ANALYSIS

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