CVE-2026-23870

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).

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/facebook/react/security/advisories/GHSA-rv78-f8rc-xrxh	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:facebook:react-server-dom-parcel::::::node.js::*
	cpe:2.3:a:facebook:react-server-dom-parcel::::::node.js::*
	cpe:2.3:a:facebook:react-server-dom-parcel::::::node.js::*
	cpe:2.3:a:facebook:react-server-dom-turbopack::::::node.js::*
	cpe:2.3:a:facebook:react-server-dom-turbopack::::::node.js::*
	cpe:2.3:a:facebook:react-server-dom-turbopack::::::node.js::*
	cpe:2.3:a:facebook:react-server-dom-webpack::::::node.js::*
	cpe:2.3:a:facebook:react-server-dom-webpack::::::node.js::*
	cpe:2.3:a:facebook:react-server-dom-webpack::::::node.js::*

History

No history.

Information

Published : 2026-05-06 17:16

Updated : 2026-08-12 15:51

NVD link : CVE-2026-23870

Mitre link : CVE-2026-23870

CVE.ORG link : CVE-2026-23870

JSON object : View

Products Affected

facebook

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

CWE

CWE-400

Uncontrolled Resource Consumption

{"id": "CVE-2026-23870", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-23870", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-06T19:03:16.700440Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "cve-assign@fb.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "cve-assign@fb.com", "affectedData": [{"vendor": "Meta", "product": "react-server-dom-turbopack", "versions": [{"status": "affected", "version": "19.0.0", "versionType": "semver", "lessThanOrEqual": "19.0.5"}, {"status": "affected", "version": "19.1.0", "versionType": "semver", "lessThanOrEqual": "19.1.6"}, {"status": "affected", "version": "19.2.0", "versionType": "semver", "lessThanOrEqual": "19.2.5"}], "defaultStatus": "unaffected"}, {"vendor": "Meta", "product": "react-server-dom-parcel", "versions": [{"status": "affected", "version": "19.0.0", "versionType": "semver", "lessThanOrEqual": "19.0.5"}, {"status": "affected", "version": "19.1.0", "versionType": "semver", "lessThanOrEqual": "19.1.6"}, {"status": "affected", "version": "19.2.0", "versionType": "semver", "lessThanOrEqual": "19.2.5"}], "defaultStatus": "unaffected"}, {"vendor": "Meta", "product": "react-server-dom-webpack", "versions": [{"status": "affected", "version": "19.0.0", "versionType": "semver", "lessThanOrEqual": "19.0.5"}, {"status": "affected", "version": "19.1.0", "versionType": "semver", "lessThanOrEqual": "19.1.6"}, {"status": "affected", "version": "19.2.0", "versionType": "semver", "lessThanOrEqual": "19.2.5"}], "defaultStatus": "unaffected"}]}], "published": "2026-05-06T17:16:22.043", "references": [{"url": "https://github.com/facebook/react/security/advisories/GHSA-rv78-f8rc-xrxh", "tags": ["Vendor Advisory"], "source": "cve-assign@fb.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-400"}]}], "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)."}], "lastModified": "2026-08-12T15:51:57.517", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:facebook:react-server-dom-parcel:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "A1678B87-ED02-4BF8-A08C-A87759FDFAEC", "versionEndIncluding": "19.0.5", "versionStartIncluding": "19.0.0"}, {"criteria": "cpe:2.3:a:facebook:react-server-dom-parcel:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "D6962C45-D7EC-4DF0-B9C6-DB96A84384FA", "versionEndIncluding": "19.1.6", "versionStartIncluding": "19.1.0"}, {"criteria": "cpe:2.3:a:facebook:react-server-dom-parcel:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "640841EA-DA32-4459-9F6A-FCAC50E3D446", "versionEndIncluding": "19.2.5", "versionStartIncluding": "19.2.0"}, {"criteria": "cpe:2.3:a:facebook:react-server-dom-turbopack:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "B1F8B3DF-589C-4CEC-9BD6-854B23406AF0", "versionEndIncluding": "19.0.5", "versionStartIncluding": "19.0.0"}, {"criteria": "cpe:2.3:a:facebook:react-server-dom-turbopack:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "532D814C-29FF-400A-971F-49C16C6AA131", "versionEndIncluding": "19.1.6", "versionStartIncluding": "19.1.0"}, {"criteria": "cpe:2.3:a:facebook:react-server-dom-turbopack:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "385AECA1-DEF6-4349-9BFD-807B071740F1", "versionEndIncluding": "19.2.5", "versionStartIncluding": "19.2.0"}, {"criteria": "cpe:2.3:a:facebook:react-server-dom-webpack:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "AA8882E3-789E-4A7B-B47E-6286F60F719E", "versionEndIncluding": "19.0.5", "versionStartIncluding": "19.0.0"}, {"criteria": "cpe:2.3:a:facebook:react-server-dom-webpack:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "BB14FFF9-8903-4AAC-A563-B498394C75C0", "versionEndIncluding": "19.1.6", "versionStartIncluding": "19.1.0"}, {"criteria": "cpe:2.3:a:facebook:react-server-dom-webpack:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "7A563960-4696-481F-8BAB-5A437AB5F14A", "versionEndIncluding": "19.2.5", "versionStartIncluding": "19.2.0"}], "operator": "OR"}]}], "sourceIdentifier": "cve-assign@fb.com"}