ncsc-2025-0394
Vulnerability from csaf_ncscnl
Published
2025-12-12 09:04
Modified
2025-12-12 10:46
Summary
Kwetsbaarheden verholpen in React Server Components
Notes
The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions:
NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein.
NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory.
This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings.
Feiten
Meta heeft kwetsbaarheden verholpen in React Server Components Parcel, Turbopack en Webpack.
Interpretaties
De kwetsbaarheden zijn gerelateerd aan onveilige deserialisatie van HTTP-verzoekpayloads, wat kan leiden tot Denial-of-Service-aanvallen en serverhangen. Dit heeft invloed op de beschikbaarheid van applicaties die gebruikmaken van deze versies. Daarnaast is er een informatielek dat kan resulteren in het blootleggen van de broncode van Server Functions onder specifieke omstandigheden. Deze kwetsbaarheden zijn kritiek voor server-side rendering in React-applicaties.
Oplossingen
Meta heeft updates uitgebracht om de kwetsbaarheden te verhelpen. Zie bijgevoegde referenties voor meer informatie.
Kans
medium
Schade
high
CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
CWE-400
Uncontrolled Resource Consumption
CWE-497
Exposure of Sensitive System Information to an Unauthorized Control Sphere
CWE-502
Deserialization of Untrusted Data
CWE-835
Loop with Unreachable Exit Condition ('Infinite Loop')
{
"document": {
"category": "csaf_security_advisory",
"csaf_version": "2.0",
"distribution": {
"tlp": {
"label": "WHITE"
}
},
"lang": "nl",
"notes": [
{
"category": "legal_disclaimer",
"text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions:\n\n NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein.\n\n NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory.\n This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings."
},
{
"category": "description",
"text": "Meta heeft kwetsbaarheden verholpen in React Server Components Parcel, Turbopack en Webpack.",
"title": "Feiten"
},
{
"category": "description",
"text": "De kwetsbaarheden zijn gerelateerd aan onveilige deserialisatie van HTTP-verzoekpayloads, wat kan leiden tot Denial-of-Service-aanvallen en serverhangen. Dit heeft invloed op de beschikbaarheid van applicaties die gebruikmaken van deze versies. Daarnaast is er een informatielek dat kan resulteren in het blootleggen van de broncode van Server Functions onder specifieke omstandigheden. Deze kwetsbaarheden zijn kritiek voor server-side rendering in React-applicaties.",
"title": "Interpretaties"
},
{
"category": "description",
"text": "Meta heeft updates uitgebracht om de kwetsbaarheden te verhelpen. Zie bijgevoegde referenties voor meer informatie.",
"title": "Oplossingen"
},
{
"category": "general",
"text": "medium",
"title": "Kans"
},
{
"category": "general",
"text": "high",
"title": "Schade"
},
{
"category": "general",
"text": "Exposure of Sensitive Information to an Unauthorized Actor",
"title": "CWE-200"
},
{
"category": "general",
"text": "Uncontrolled Resource Consumption",
"title": "CWE-400"
},
{
"category": "general",
"text": "Exposure of Sensitive System Information to an Unauthorized Control Sphere",
"title": "CWE-497"
},
{
"category": "general",
"text": "Deserialization of Untrusted Data",
"title": "CWE-502"
},
{
"category": "general",
"text": "Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)",
"title": "CWE-835"
}
],
"publisher": {
"category": "coordinator",
"contact_details": "cert@ncsc.nl",
"name": "Nationaal Cyber Security Centrum",
"namespace": "https://www.ncsc.nl/"
},
"references": [
{
"category": "external",
"summary": "Reference",
"url": "https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components"
},
{
"category": "external",
"summary": "Reference",
"url": "https://www.facebook.com/security/advisories/cve-2025-55183"
},
{
"category": "external",
"summary": "Reference",
"url": "https://www.facebook.com/security/advisories/cve-2025-55184"
},
{
"category": "external",
"summary": "Reference",
"url": "https://www.facebook.com/security/advisories/cve-2025-67779"
}
],
"title": "Kwetsbaarheden verholpen in React Server Components",
"tracking": {
"current_release_date": "2025-12-12T10:46:34.688189Z",
"generator": {
"date": "2025-08-04T16:30:00Z",
"engine": {
"name": "V.A.",
"version": "1.3"
}
},
"id": "NCSC-2025-0394",
"initial_release_date": "2025-12-12T09:04:19.324080Z",
"revision_history": [
{
"date": "2025-12-12T09:04:19.324080Z",
"number": "1.0.0",
"summary": "Initiele versie"
},
{
"date": "2025-12-12T10:46:34.688189Z",
"number": "1.0.1",
"summary": "De kwetsbaarheden zitten volgens het React team in onderstaande versies:\n\n- CVE-2025-55184 \u0026 CVE-2025-55183 - 19.0.0, 19.0.1 19.1.0, 19.1.1, 19.1.2, 19.2.0 and 19.2.1\n\n- CVE-2025-67779 - 19.0.2, 19.1.3 and 19.2.2\n\nDe kwetsbaarheden worden in versies 19.0.3, 19.1.4, and 19.2.3 verholpen."
}
],
"status": "final",
"version": "1.0.1"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "vers:unknown/*",
"product": {
"name": "vers:unknown/*",
"product_id": "CSAFPID-1"
}
}
],
"category": "product_name",
"name": "react-server-dom-parcel"
},
{
"branches": [
{
"category": "product_version_range",
"name": "vers:unknown/*",
"product": {
"name": "vers:unknown/*",
"product_id": "CSAFPID-2"
}
}
],
"category": "product_name",
"name": "react-server-dom-turbopack"
},
{
"branches": [
{
"category": "product_version_range",
"name": "vers:unknown/*",
"product": {
"name": "vers:unknown/*",
"product_id": "CSAFPID-3"
}
}
],
"category": "product_name",
"name": "react-server-dom-webpack"
}
],
"category": "vendor",
"name": "Meta Open Source"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2025-67779",
"notes": [
{
"category": "description",
"text": "The fix for CVE-2025-55184 in React Server Components is incomplete, leaving versions 19.0.2, 19.1.3, and 19.2.2 vulnerable to denial of service attacks due to unsafe deserialization of HTTP request payloads.",
"title": "Summary"
}
],
"product_status": {
"known_affected": [
"CSAFPID-1",
"CSAFPID-2",
"CSAFPID-3"
]
},
"references": [
{
"category": "self",
"summary": "CVE-2025-67779 | NCSC-NL Website",
"url": "https://vulnerabilities.ncsc.nl/csaf/v2/2025/cve-2025-67779.json"
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"CSAFPID-1",
"CSAFPID-2",
"CSAFPID-3"
]
}
],
"title": "CVE-2025-67779"
},
{
"cve": "CVE-2025-55183",
"cwe": {
"id": "CWE-497",
"name": "Exposure of Sensitive System Information to an Unauthorized Control Sphere"
},
"notes": [
{
"category": "other",
"text": "Exposure of Sensitive System Information to an Unauthorized Control Sphere",
"title": "CWE-497"
},
{
"category": "other",
"text": "Deserialization of Untrusted Data",
"title": "CWE-502"
},
{
"category": "description",
"text": "A vulnerability in React Server Components allows crafted HTTP requests to expose source code, necessitating immediate updates for affected versions.",
"title": "Summary"
}
],
"product_status": {
"known_affected": [
"CSAFPID-1",
"CSAFPID-2",
"CSAFPID-3"
]
},
"references": [
{
"category": "self",
"summary": "CVE-2025-55183 | NCSC-NL Website",
"url": "https://vulnerabilities.ncsc.nl/csaf/v2/2025/cve-2025-55183.json"
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
},
"products": [
"CSAFPID-1",
"CSAFPID-2",
"CSAFPID-3"
]
}
],
"title": "CVE-2025-55183"
},
{
"cve": "CVE-2025-55184",
"cwe": {
"id": "CWE-400",
"name": "Uncontrolled Resource Consumption"
},
"notes": [
{
"category": "other",
"text": "Uncontrolled Resource Consumption",
"title": "CWE-400"
},
{
"category": "other",
"text": "Deserialization of Untrusted Data",
"title": "CWE-502"
},
{
"category": "description",
"text": "A denial of service vulnerability in specific versions of React Server Components, caused by unsafe deserialization, can lead to server hangs and block future HTTP requests.",
"title": "Summary"
}
],
"product_status": {
"known_affected": [
"CSAFPID-1",
"CSAFPID-2",
"CSAFPID-3"
]
},
"references": [
{
"category": "self",
"summary": "CVE-2025-55184 | NCSC-NL Website",
"url": "https://vulnerabilities.ncsc.nl/csaf/v2/2025/cve-2025-55184.json"
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"CSAFPID-1",
"CSAFPID-2",
"CSAFPID-3"
]
}
],
"title": "CVE-2025-55184"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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