CVE-2026-44907

highpriority · track · 0EPSS 0.006 · 49 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.60% (49th) EPSS

CVSS 7.5 · high

Is it mine?

17 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · osv

EPSS · scored 2026-10-27

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).

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · cve-assign@fb.comexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400USCWE-770US

affected products (17)

Products and version ranges known to be affected.

Meta react-server-dom-parcel≤ 19.0.0 ≤19.0.7enisa_euvdEU
Meta react-server-dom-parcel≤ 19.2.0 ≤19.2.7enisa_euvdEU
Meta react-server-dom-parcel≤ 19.1.0 ≤19.1.8enisa_euvdEU
Meta react-server-dom-turbopack≤ 19.2.0 ≤19.2.7enisa_euvdEU
Meta react-server-dom-turbopack≤ 19.0.0 ≤19.0.7enisa_euvdEU
Meta react-server-dom-turbopack≤ 19.1.0 ≤19.1.8enisa_euvdEU
Meta react-server-dom-webpack≤ 19.2.0 ≤19.2.7enisa_euvdEU
Meta react-server-dom-webpack≤ 19.1.0 ≤19.1.8enisa_euvdEU
Meta react-server-dom-webpack≤ 19.0.0 ≤19.0.7enisa_euvdEU
npm react-server-dom-parcel19.1.0 → 19.1.9osvUSpkg:npm/react-server-dom-parcel
npm react-server-dom-parcel19.2.0 → 19.2.8osvUSpkg:npm/react-server-dom-parcel
npm react-server-dom-turbopack19.0.0 → 19.0.8osvUSpkg:npm/react-server-dom-turbopack
npm react-server-dom-turbopack19.1.0 → 19.1.9osvUSpkg:npm/react-server-dom-turbopack
npm react-server-dom-turbopack19.2.0 → 19.2.8osvUSpkg:npm/react-server-dom-turbopack
npm react-server-dom-webpack19.0.0 → 19.0.8osvUSpkg:npm/react-server-dom-webpack
npm react-server-dom-webpack19.1.0 → 19.1.9osvUSpkg:npm/react-server-dom-webpack
npm react-server-dom-webpack19.2.0 → 19.2.8osvUSpkg:npm/react-server-dom-webpack

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-wx67-qw84-cm4greact-server-dom: Denial of Service in Server Functions2026-07-24ghsa · osvUS
### Impact A denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could lead to out-of-memory exceptions or excessive CPU usage. We recommend updating immediately. The vulnerability exists in versions 19.0.0 through 19.0.7, 19.1.0 through 19.1.8, and 19.2.0 through 19.2.7 of: - react-server-dom-webpack - react-server-dom-parcel - react-server-dom-turbopack ### Patches Fixes were back ported to versions 19.0.8, 19.1.9, and 19.2.8. If you are using any of the above packages please upgrade to any of the fixed versions immediately. If your app’s React code does not use a server, your app is not affected by this vulnerability. If your app does not use a framework, bundler, or bundler plugin that supports React Server Components, your app is not affected by this vulnerability.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv NVD CVE.org MITRE

published 2026-07-21modified 2026-07-21

references (3)

External citations — patches, advisories, analysis.

scry

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