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CVE Vulnerability Details :
CVE-2026-23869
PUBLISHED
More InfoOfficial Page
Assigner-Meta
Assigner Org ID-4fc57720-52fe-4431-a0fb-3d2c8747b827
View Known Exploited Vulnerability (KEV) details
Published At-08 Apr, 2026 | 19:11
Updated At-08 Apr, 2026 | 19:56
Rejected At-
▼CVE Numbering Authority (CNA)

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.

Affected Products
Vendor
Meta Platforms, Inc.Meta
Product
react-server-dom-turbopack
Default Status
unaffected
Versions
Affected
  • From 19.0.0 through 19.0.4 (semver)
  • From 19.1.0 through 19.1.5 (semver)
  • From 19.2.0 through 19.2.4 (semver)
Vendor
Meta Platforms, Inc.Meta
Product
react-server-dom-parcel
Default Status
unaffected
Versions
Affected
  • From 19.0.0 through 19.0.4 (semver)
  • From 19.1.0 through 19.1.5 (semver)
  • From 19.2.0 through 19.2.4 (semver)
Vendor
Meta Platforms, Inc.Meta
Product
react-server-dom-webpack
Default Status
unaffected
Versions
Affected
  • From 19.0.0 through 19.0.4 (semver)
  • From 19.1.0 through 19.1.5 (semver)
  • From 19.2.0 through 19.2.4 (semver)
Problem Types
TypeCWE IDDescription
N/AN/A(CWE-502) Deserialization of Untrusted Data, (CWE-400) Uncontrolled Resource Consumption
Type: N/A
CWE ID: N/A
Description: (CWE-502) Deserialization of Untrusted Data, (CWE-400) Uncontrolled Resource Consumption
Metrics
VersionBase scoreBase severityVector
3.17.5HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/facebook/react/security/advisories/GHSA-479c-33wc-g2pg
x_refsource_CONFIRM
Hyperlink: https://github.com/facebook/react/security/advisories/GHSA-479c-33wc-g2pg
Resource:
x_refsource_CONFIRM
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Problem Types
TypeCWE IDDescription
CWECWE-502CWE-502 Deserialization of Untrusted Data
CWECWE-400CWE-400 Uncontrolled Resource Consumption
Type: CWE
CWE ID: CWE-502
Description: CWE-502 Deserialization of Untrusted Data
Type: CWE
CWE ID: CWE-400
Description: CWE-400 Uncontrolled Resource Consumption
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found