CVE-2025-55183 (GCVE-0-2025-55183)

Vulnerability from cvelistv5 – Published: 2025-12-11 20:04 – Updated: 2026-01-07 16:26
VLAI
Summary
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.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • (CWE-502) Deserialization of Untrusted Data. (CWE-497) Exposure of Sensitive System Information to an Unauthorized Actor
Assigner
References
Impacted products
Vendor Product Version
Meta react-server-dom-webpack Affected: 19.0.0 , ≤ 19.0.1 (semver)
Affected: 19.1.0 , ≤ 19.1.2 (semver)
Affected: 19.2.0 , ≤ 19.2.1 (semver)
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Meta react-server-dom-turbopack Affected: 19.0.0 , ≤ 19.0.1 (semver)
Affected: 19.1.0 , ≤ 19.1.2 (semver)
Affected: 19.2.0 , ≤ 19.2.1 (semver)
Create a notification for this product.
Meta react-server-dom-parcel Affected: 19.0.0 , ≤ 19.0.1 (semver)
Affected: 19.1.0 , ≤ 19.1.2 (semver)
Affected: 19.2.0 , ≤ 19.2.1 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-55183\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-07T16:24:47.971492Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-07T16:25:58.340Z\"}}], \"cna\": {\"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"version\": \"3.1\", \"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\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Meta\", \"product\": \"react-server-dom-webpack\", \"versions\": [{\"status\": \"affected\", \"version\": \"19.0.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"19.0.1\"}, {\"status\": \"affected\", \"version\": \"19.1.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"19.1.2\"}, {\"status\": \"affected\", \"version\": \"19.2.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"19.2.1\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Meta\", \"product\": \"react-server-dom-turbopack\", \"versions\": [{\"status\": \"affected\", \"version\": \"19.0.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"19.0.1\"}, {\"status\": \"affected\", \"version\": \"19.1.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"19.1.2\"}, {\"status\": \"affected\", \"version\": \"19.2.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"19.2.1\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Meta\", \"product\": \"react-server-dom-parcel\", \"versions\": [{\"status\": \"affected\", \"version\": \"19.0.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"19.0.1\"}, {\"status\": \"affected\", \"version\": \"19.1.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"19.1.2\"}, {\"status\": \"affected\", \"version\": \"19.2.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"19.2.1\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://www.facebook.com/security/advisories/cve-2025-55183\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components\", \"tags\": [\"x_refsource_CONFIRM\"]}], \"dateAssigned\": \"2025-12-09T00:00:00.000Z\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"(CWE-502) Deserialization of Untrusted Data. (CWE-497) Exposure of Sensitive System Information to an Unauthorized Actor\"}]}], \"providerMetadata\": {\"orgId\": \"4fc57720-52fe-4431-a0fb-3d2c8747b827\", \"shortName\": \"Meta\", \"dateUpdated\": \"2025-12-11T20:09:32.286Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-55183\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-07T16:26:47.826Z\", \"dateReserved\": \"2025-08-08T18:21:47.119Z\", \"assignerOrgId\": \"4fc57720-52fe-4431-a0fb-3d2c8747b827\", \"datePublished\": \"2025-12-11T20:04:48.655Z\", \"assignerShortName\": \"Meta\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Detection rules are retrieved from Rulezet.