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Vulnerability Details :

CVE-2025-55183

Assigner-Meta

Assigner Org ID-4fc57720-52fe-4431-a0fb-3d2c8747b827

Published At-11 Dec, 2025 | 20:04

Updated At-07 Jan, 2026 | 16:26

An information leak vulnerability exists in specific configurations of React Server Components versions 19.0.0, 19.0.1 19.1.0, 19.1.1, 19.1.2, 19.2.0 and 19.2.1, including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. A specifically crafted HTTP request sent to a vulnerable Server Function may unsafely return the source code of any Server Function. Exploitation requires the existence of a Server Function which explicitly or implicitly exposes a stringified argument.

EPSS History

Score

Latest Score

N/A

Percentile

Latest Percentile

N/A

▼Common Vulnerabilities and Exposures (CVE)

cve.org

Assigner:Meta

Assigner Org ID:4fc57720-52fe-4431-a0fb-3d2c8747b827

Published At:11 Dec, 2025 | 20:04

Updated At:07 Jan, 2026 | 16:26

▼CVE Numbering Authority (CNA)

Affected Products

Vendor

Meta Platforms, Inc.

Product

react-server-dom-webpack

Default Status

unaffected

Versions

Affected

From 19.0.0 through 19.0.1 (semver)
From 19.1.0 through 19.1.2 (semver)
From 19.2.0 through 19.2.1 (semver)

Vendor

Meta Platforms, Inc.

Product

react-server-dom-turbopack

Default Status

unaffected

Versions

Affected

From 19.0.0 through 19.0.1 (semver)
From 19.1.0 through 19.1.2 (semver)
From 19.2.0 through 19.2.1 (semver)

Vendor

Meta Platforms, Inc.

Product

react-server-dom-parcel

Default Status

unaffected

Versions

Affected

From 19.0.0 through 19.0.1 (semver)
From 19.1.0 through 19.1.2 (semver)
From 19.2.0 through 19.2.1 (semver)

Problem Types

Type	CWE ID	Description
N/A	N/A	(CWE-502) Deserialization of Untrusted Data. (CWE-497) Exposure of Sensitive System Information to an Unauthorized Actor

Type: N/A

CWE ID: N/A

Description: (CWE-502) Deserialization of Untrusted Data. (CWE-497) Exposure of Sensitive System Information to an Unauthorized Actor

Metrics

Version	Base score	Base severity	Vector
3.1	5.3	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Version: 3.1

Base score: 5.3

Base severity: MEDIUM

Vector:

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

References

Hyperlink	Resource
https://www.facebook.com/security/advisories/cve-2025-55183	x_refsource_CONFIRM
https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components	x_refsource_CONFIRM

Hyperlink: https://www.facebook.com/security/advisories/cve-2025-55183

Resource:

x_refsource_CONFIRM

Hyperlink: https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components

Resource:

x_refsource_CONFIRM

▼Authorized Data Publishers (ADP)

CISA ADP Vulnrichment

Metrics Other Info

▼National Vulnerability Database (NVD)

nvd.nist.gov

Source:cve-assign@fb.com

Published At:11 Dec, 2025 | 20:16

Updated At:12 Dec, 2025 | 18:18

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	3.1	5.3	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Type: Secondary

Version: 3.1

Base score: 5.3

Base severity: MEDIUM

Vector:

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

CPE Matches

Facebook

>>react>>Versions from 19.0.0(inclusive) to 19.0.2(exclusive)

cpe:2.3:a:facebook:react:*:*:*:*:*:*:*:*

Facebook

>>react>>Versions from 19.1.0(inclusive) to 19.1.3(exclusive)

cpe:2.3:a:facebook:react:*:*:*:*:*:*:*:*

Facebook

>>react>>Versions from 19.2.0(inclusive) to 19.2.2(exclusive)

cpe:2.3:a:facebook:react:*:*:*:*:*:*:*:*

vercel>>next.js>>Versions from 15.0.0(inclusive) to 15.0.7(exclusive)

cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:*

vercel>>next.js>>Versions from 15.1.0(inclusive) to 15.1.11(exclusive)

cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:*

vercel>>next.js>>Versions from 15.2.0(inclusive) to 15.2.8(exclusive)

cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:*

vercel>>next.js>>Versions from 15.3.0(inclusive) to 15.3.8(exclusive)

cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:*

vercel>>next.js>>Versions from 15.4.0(inclusive) to 15.4.10(exclusive)

cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:*

vercel>>next.js>>Versions from 15.5.0(inclusive) to 15.5.9(exclusive)

cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:*

vercel>>next.js>>Versions from 16.0.0(inclusive) to 16.0.10(exclusive)

Hyperlink	Source	Resource
https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components	cve-assign@fb.com	Exploit Vendor Advisory
https://www.facebook.com/security/advisories/cve-2025-55183	cve-assign@fb.com	Vendor Advisory

CVE-2025-55183

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