Vulnerability-Lookup

BDU:2026-06513 (CVE-2026-23870)

Vulnerability from fstec – Published: 2026-05-12 – Updated: 2026-05-12 – View on bdu.fstec.ru Fixed

Title

Summary

Уязвимость пакетов react-server-dom-parcel, react-server-dom-turbopack и react-server-dom-webpack JavaScript библиотеки построения пользовательских интерфейсов React связана с неконтролируемым расходом ресурсов. Эксплуатация уязвимости может позволить нарушителю, действующему удаленно, вызвать отказ в обслуживании путем отправки специально сформированных HTTP-запросов

Severity

7.8 (High) CVSS 2.0


                      
                        AV:N/AC:L/Au:N/C:N/I:N/A:C

7.5 (High) CVSS 3.1


                      
                        CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Resource exhaustion

Incidents

Being clarified

Remediation

Software update

CWE

CWE-400 - Неконтролируемый расход ресурса («Истощение ресурса»)
CWE-770 - Неограниченное распределение ресурсов или дросселирование

Aliases

CVE-2026-23870, GHSA-RV78-F8RC-XRXH

References

1 reference

URL
https://github.com/facebook/react/security/advisories/GHSA-rv78-f8rc-xrxh

Impacted products

3 products from 1 vendor

Vendors

Meta Platforms Inc

Products

react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack

Versions

19.0.0 (react-server-dom-parcel), 19.0.1 (react-server-dom-parcel), 19.0.2 (react-server-dom-parcel), 19.0.3 (react-server-dom-parcel), 19.0.4 (react-server-dom-parcel), 19.0.5 (react-server-dom-parcel), 19.1.0 (react-server-dom-parcel), 19.1.1 (react-server-dom-parcel), 19.1.2 (react-server-dom-parcel), 19.1.3 (react-server-dom-parcel), 19.1.4 (react-server-dom-parcel), 19.1.5 (react-server-dom-parcel), 19.1.6 (react-server-dom-parcel), 19.2.0 (react-server-dom-parcel), 19.2.1 (react-server-dom-parcel), 19.2.2 (react-server-dom-parcel), 19.2.3 (react-server-dom-parcel), 19.2.4 (react-server-dom-parcel), 19.2.5 (react-server-dom-parcel), 19.0.0 (react-server-dom-turbopack), 19.0.1 (react-server-dom-turbopack), 19.0.2 (react-server-dom-turbopack), 19.0.3 (react-server-dom-turbopack), 19.0.4 (react-server-dom-turbopack), 19.0.5 (react-server-dom-turbopack), 19.1.0 (react-server-dom-turbopack), 19.1.1 (react-server-dom-turbopack), 19.1.2 (react-server-dom-turbopack), 19.1.3 (react-server-dom-turbopack), 19.1.4 (react-server-dom-turbopack), 19.1.5 (react-server-dom-turbopack), 19.1.6 (react-server-dom-turbopack), 19.2.0 (react-server-dom-turbopack), 19.2.1 (react-server-dom-turbopack), 19.2.2 (react-server-dom-turbopack), 19.2.3 (react-server-dom-turbopack), 19.2.4 (react-server-dom-turbopack), 19.2.5 (react-server-dom-turbopack), 19.0.0 (react-server-dom-webpack), 19.0.1 (react-server-dom-webpack), 19.0.2 (react-server-dom-webpack), 19.0.3 (react-server-dom-webpack), 19.0.4 (react-server-dom-webpack), 19.0.5 (react-server-dom-webpack), 19.1.0 (react-server-dom-webpack), 19.1.1 (react-server-dom-webpack), 19.1.2 (react-server-dom-webpack), 19.1.3 (react-server-dom-webpack), 19.1.4 (react-server-dom-webpack), 19.1.5 (react-server-dom-webpack), 19.1.6 (react-server-dom-webpack), 19.2.0 (react-server-dom-webpack), 19.2.1 (react-server-dom-webpack), 19.2.2 (react-server-dom-webpack), 19.2.3 (react-server-dom-webpack), 19.2.4 (react-server-dom-webpack), 19.2.5 (react-server-dom-webpack)

Product types

Application software

Mitigations

Использование рекомендаций производителя: https://github.com/facebook/react/security/advisories/GHSA-rv78-f8rc-xrxh

JSON

To clipboard

{
  "CVSS 2.0": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
  "CVSS 3.0": "AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "Meta Platforms Inc",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "19.0.0 (react-server-dom-parcel), 19.0.1 (react-server-dom-parcel), 19.0.2 (react-server-dom-parcel), 19.0.3 (react-server-dom-parcel), 19.0.4 (react-server-dom-parcel), 19.0.5 (react-server-dom-parcel), 19.1.0 (react-server-dom-parcel), 19.1.1 (react-server-dom-parcel), 19.1.2 (react-server-dom-parcel), 19.1.3 (react-server-dom-parcel), 19.1.4 (react-server-dom-parcel), 19.1.5 (react-server-dom-parcel), 19.1.6 (react-server-dom-parcel), 19.2.0 (react-server-dom-parcel), 19.2.1 (react-server-dom-parcel), 19.2.2 (react-server-dom-parcel), 19.2.3 (react-server-dom-parcel), 19.2.4 (react-server-dom-parcel), 19.2.5 (react-server-dom-parcel), 19.0.0 (react-server-dom-turbopack), 19.0.1 (react-server-dom-turbopack), 19.0.2 (react-server-dom-turbopack), 19.0.3 (react-server-dom-turbopack), 19.0.4 (react-server-dom-turbopack), 19.0.5 (react-server-dom-turbopack), 19.1.0 (react-server-dom-turbopack), 19.1.1 (react-server-dom-turbopack), 19.1.2 (react-server-dom-turbopack), 19.1.3 (react-server-dom-turbopack), 19.1.4 (react-server-dom-turbopack), 19.1.5 (react-server-dom-turbopack), 19.1.6 (react-server-dom-turbopack), 19.2.0 (react-server-dom-turbopack), 19.2.1 (react-server-dom-turbopack), 19.2.2 (react-server-dom-turbopack), 19.2.3 (react-server-dom-turbopack), 19.2.4 (react-server-dom-turbopack), 19.2.5 (react-server-dom-turbopack), 19.0.0 (react-server-dom-webpack), 19.0.1 (react-server-dom-webpack), 19.0.2 (react-server-dom-webpack), 19.0.3 (react-server-dom-webpack), 19.0.4 (react-server-dom-webpack), 19.0.5 (react-server-dom-webpack), 19.1.0 (react-server-dom-webpack), 19.1.1 (react-server-dom-webpack), 19.1.2 (react-server-dom-webpack), 19.1.3 (react-server-dom-webpack), 19.1.4 (react-server-dom-webpack), 19.1.5 (react-server-dom-webpack), 19.1.6 (react-server-dom-webpack), 19.2.0 (react-server-dom-webpack), 19.2.1 (react-server-dom-webpack), 19.2.2 (react-server-dom-webpack), 19.2.3 (react-server-dom-webpack), 19.2.4 (react-server-dom-webpack), 19.2.5 (react-server-dom-webpack)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f:\nhttps://github.com/facebook/react/security/advisories/GHSA-rv78-f8rc-xrxh",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "06.05.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "12.05.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "12.05.2026",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-06513",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2026-23870, GHSA-rv78-f8rc-xrxh",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": null,
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u0430\u043a\u0435\u0442\u043e\u0432 react-server-dom-parcel, react-server-dom-turbopack \u0438 react-server-dom-webpack JavaScript \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 \u043f\u043e\u0441\u0442\u0440\u043e\u0435\u043d\u0438\u044f \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u0441\u043a\u0438\u0445 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u043e\u0432 React, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u041d\u0435\u043a\u043e\u043d\u0442\u0440\u043e\u043b\u0438\u0440\u0443\u0435\u043c\u044b\u0439 \u0440\u0430\u0441\u0445\u043e\u0434 \u0440\u0435\u0441\u0443\u0440\u0441\u0430 (\u00ab\u0418\u0441\u0442\u043e\u0449\u0435\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u0430\u00bb) (CWE-400), \u041d\u0435\u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u043d\u043e\u0435 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432 \u0438\u043b\u0438 \u0434\u0440\u043e\u0441\u0441\u0435\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 (CWE-770)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u0430\u043a\u0435\u0442\u043e\u0432 react-server-dom-parcel, react-server-dom-turbopack \u0438 react-server-dom-webpack JavaScript \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 \u043f\u043e\u0441\u0442\u0440\u043e\u0435\u043d\u0438\u044f \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u0441\u043a\u0438\u0445 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u043e\u0432 React \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u043d\u0435\u043a\u043e\u043d\u0442\u0440\u043e\u043b\u0438\u0440\u0443\u0435\u043c\u044b\u043c \u0440\u0430\u0441\u0445\u043e\u0434\u043e\u043c \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e, \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u043c\u0443 \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e, \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438 \u043f\u0443\u0442\u0435\u043c \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0438 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u0441\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 HTTP-\u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u0418\u0441\u0447\u0435\u0440\u043f\u0430\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://github.com/facebook/react/security/advisories/GHSA-rv78-f8rc-xrxh",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041f\u0440\u0438\u043a\u043b\u0430\u0434\u043d\u043e\u0435 \u041f\u041e \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-400, CWE-770",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 7,8)\n\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.1 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 7,5)"
}

CVE-2026-23870 (GCVE-0-2026-23870)

Vulnerability from cvelistv5 – Published: 2026-05-06 16:24 – Updated: 2026-05-06 19:06

Summary

A denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could lead to server crashes, out-of-memory exceptions or excessive CPU usage; affecting the following packages: react-server-dom-webpack, react-server-dom-parcel, react-server-dom-turbopack (versions 19.0.0 through 19.0.5, 19.1.0 through 19.1.6, and 19.2.0 through 19.2.5).

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-06 19:03 UTC

CWE

(CWE-502) Deserialization of Untrusted Data, (CWE-400) Uncontrolled Resource Consumption

Assigner

Meta mitre root

References

1 reference

URL	Tags
https://github.com/facebook/react/security/adviso…	x_refsource_CONFIRM

Impacted products

3 products

Vendor	Product	Version
Meta	react-server-dom-turbopack	Affected: 19.0.0 , ≤ 19.0.5 (semver) Affected: 19.1.0 , ≤ 19.1.6 (semver) Affected: 19.2.0 , ≤ 19.2.5 (semver)
Meta	react-server-dom-parcel	Affected: 19.0.0 , ≤ 19.0.5 (semver) Affected: 19.1.0 , ≤ 19.1.6 (semver) Affected: 19.2.0 , ≤ 19.2.5 (semver)
Meta	react-server-dom-webpack	Affected: 19.0.0 , ≤ 19.0.5 (semver) Affected: 19.1.0 , ≤ 19.1.6 (semver) Affected: 19.2.0 , ≤ 19.2.5 (semver)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-23870",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-06T19:03:16.700440Z",
                "version": "2.0.3"
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              "type": "ssvc"
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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    "cna": {
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              "status": "affected",
              "version": "19.0.0",
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              "status": "affected",
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              "versionType": "semver"
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              "status": "affected",
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      ],
      "dateAssigned": "2026-05-06T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could lead to server crashes, out-of-memory exceptions or excessive CPU usage; affecting the following packages: react-server-dom-webpack, react-server-dom-parcel, react-server-dom-turbopack (versions 19.0.0 through 19.0.5, 19.1.0 through 19.1.6, and 19.2.0 through 19.2.5)."
        }
      ],
      "metrics": [
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          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
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            "version": "3.1"
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          "scenarios": [
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              "description": "(CWE-502) Deserialization of Untrusted Data, (CWE-400) Uncontrolled Resource Consumption",
              "lang": "en"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-06T16:24:55.620Z",
        "orgId": "4fc57720-52fe-4431-a0fb-3d2c8747b827",
        "shortName": "Meta"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/facebook/react/security/advisories/GHSA-rv78-f8rc-xrxh"
        }
      ]
    }
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  "cveMetadata": {
    "assignerOrgId": "4fc57720-52fe-4431-a0fb-3d2c8747b827",
    "assignerShortName": "Meta",
    "cveId": "CVE-2026-23870",
    "datePublished": "2026-05-06T16:24:55.620Z",
    "dateReserved": "2026-01-16T19:49:26.309Z",
    "dateUpdated": "2026-05-06T19:06:00.435Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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}

GHSA-RV78-F8RC-XRXH

Vulnerability from github – Published: 2026-05-11 14:50 – Updated: 2026-05-11 14:50

Summary

Facebook React has a Denial of Service Vulnerability in React Server Components

Details

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 19.0.5, 19.1.0 through 19.1.6, and 19.2.0 through 19.2.5 of:

react-server-dom-webpack react-server-dom-parcel react-server-dom-turbopack

Patches

Fixes were back ported to versions 19.0.6, 19.1.7, and 19.2.6.

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.

References See the blog post for more information and upgrade instructions.

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "react-server-dom-parcel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "19.0.0"
            },
            {
              "fixed": "19.0.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "react-server-dom-turbopack"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "19.0.0"
            },
            {
              "fixed": "19.0.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "react-server-dom-webpack"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "19.0.0"
            },
            {
              "fixed": "19.0.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "react-server-dom-parcel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "19.1.0"
            },
            {
              "fixed": "19.1.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "react-server-dom-turbopack"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "19.1.0"
            },
            {
              "fixed": "19.1.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "react-server-dom-webpack"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "19.1.0"
            },
            {
              "fixed": "19.1.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "react-server-dom-parcel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "19.2.0"
            },
            {
              "fixed": "19.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "react-server-dom-turbopack"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "19.2.0"
            },
            {
              "fixed": "19.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "react-server-dom-webpack"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "19.2.0"
            },
            {
              "fixed": "19.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-23870"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400",
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-11T14:50:07Z",
    "nvd_published_at": "2026-05-06T17:16:22Z",
    "severity": "HIGH"
  },
  "details": "## Impact\n\nA 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.\n\nWe recommend updating immediately.\n\nThe vulnerability exists in versions 19.0.0 through 19.0.5, 19.1.0 through 19.1.6, and 19.2.0 through 19.2.5 of:\n\n[react-server-dom-webpack](https://www.npmjs.com/package/react-server-dom-webpack)\n[react-server-dom-parcel](https://www.npmjs.com/package/react-server-dom-parcel)\n[react-server-dom-turbopack](https://www.npmjs.com/package/react-server-dom-turbopack?activeTab=readme)\n\n## Patches\n\nFixes were back ported to versions 19.0.6, 19.1.7, and 19.2.6.\n\nIf you are using any of the above packages please upgrade to any of the fixed versions immediately.\n\nIf your app\u2019s 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.\n\nReferences\nSee the [blog post](https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components) for more information and upgrade instructions.",
  "id": "GHSA-rv78-f8rc-xrxh",
  "modified": "2026-05-11T14:50:07Z",
  "published": "2026-05-11T14:50:07Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/facebook/react/security/advisories/GHSA-rv78-f8rc-xrxh"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vercel/next.js/security/advisories/GHSA-8h8q-6873-q5fj"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vitejs/vite-plugin-react/security/advisories/GHSA-w94c-4vhp-22gx"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23870"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/facebook/react"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Facebook React has a Denial of Service Vulnerability in React Server Components"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

BDU:2026-06513 (CVE-2026-23870)

CVE-2026-23870 (GCVE-0-2026-23870)

GHSA-RV78-F8RC-XRXH

Impact

Patches

Tags

Sightings

Nomenclature

Related by attack behaviour