CVE-2026-23864 (GCVE-0-2026-23864)
Vulnerability from cvelistv5
Published
2026-01-26 19:16
Modified
2026-07-15 01:18
CWE
  • (CWE-502): Deserialization of Untrusted Data. (CWE-400): Uncontrolled Resource Consumption
Summary
Multiple denial of service vulnerabilities exist in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack. The vulnerabilities are triggered by sending specially crafted HTTP requests to Server Function endpoints, and could lead to server crashes, out-of-memory exceptions or excessive CPU usage; depending on the vulnerable code path being exercised, the application configuration and application code. Strongly consider upgrading to the latest package versions to reduce risk and prevent availability issues in applications using React Server Components.
References
Impacted products
Vendor Product Version
Meta react-server-dom-webpack Version: 19.0.0   
Version: 19.1.0   
Version: 19.2.0   
Create a notification for this product.
   Meta react-server-dom-turbopack Version: 19.0.0   
Version: 19.1.0   
Version: 19.2.0   
Create a notification for this product.
   Meta react-server-dom-parcel Version: 19.0.0   
Version: 19.1.0   
Version: 19.2.0   
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-23864",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-26T20:26:03.428817Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-502",
                "description": "CWE-502 Deserialization of Untrusted Data",
                "lang": "en",
                "type": "CWE"
              }
            ]
          },
          {
            "descriptions": [
              {
                "cweId": "CWE-400",
                "description": "CWE-400 Uncontrolled Resource Consumption",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-26T20:26:45.709Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "affected": [
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:amq_streams:2.9::el9"
            ],
            "defaultStatus": "unaffected",
            "packageName": "com.github.streamshub-console",
            "product": "Streams for Apache Kafka 2.9.4",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:amq_streams:3.2::el9"
            ],
            "defaultStatus": "unaffected",
            "packageName": "com.github.streamshub-console",
            "product": "Streams for Apache Kafka 3.2.0",
            "vendor": "Red Hat"
          }
        ],
        "datePublic": "2026-01-26T19:16:38.250Z",
        "descriptions": [
          {
            "lang": "en",
            "value": "A flaw was found in React Server Components. A remote attacker can exploit this vulnerability by sending specially crafted HTTP requests to Server Function endpoints. This can lead to a Denial of Service (DoS), causing server crashes, out-of-memory exceptions, or excessive CPU usage, thereby impacting the availability of applications."
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "namespace": "https://access.redhat.com/security/updates/classification/",
                "value": "Important"
              },
              "type": "Red Hat severity rating"
            }
          },
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            },
            "format": "CVSS"
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-1284",
                "description": "Improper Validation of Specified Quantity in Input",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-15T01:18:01.838Z",
          "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
          "shortName": "redhat-SADP"
        },
        "references": [
          {
            "tags": [
              "vdb-entry",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/security/cve/CVE-2026-23864"
          },
          {
            "name": "RHBZ#2433059",
            "tags": [
              "issue-tracking",
              "x_refsource_REDHAT"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2433059"
          },
          {
            "tags": [
              "x_sadp-csaf-vex"
            ],
            "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23864.json"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:34608"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:13571"
          }
        ],
        "solutions": [
          {
            "lang": "en",
            "value": "RHSA-2026:34608: Streams for Apache Kafka 2.9.4"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:13571: Streams for Apache Kafka 3.2.0"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2026-01-26T20:01:54.396Z",
            "value": "Reported to Red Hat."
          },
          {
            "lang": "en",
            "time": "2026-01-26T19:16:38.250Z",
            "value": "Made public."
          }
        ],
        "title": "react-server-dom-webpack: react-server-dom-parcel: reactreact-server-dom-turbopack: React Server Components: Denial of Service via specially crafted HTTP requests",
        "x_adpType": "supplier",
        "x_generator": {
          "engine": "sadp-cli 1.0.0"
        }
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "react-server-dom-webpack",
          "vendor": "Meta",
          "versions": [
            {
              "lessThan": "19.0.4",
              "status": "affected",
              "version": "19.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "19.1.5",
              "status": "affected",
              "version": "19.1.0",
              "versionType": "semver"
            },
            {
              "lessThan": "19.2.4",
              "status": "affected",
              "version": "19.2.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "react-server-dom-turbopack",
          "vendor": "Meta",
          "versions": [
            {
              "lessThan": "19.0.4",
              "status": "affected",
              "version": "19.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "19.1.5",
              "status": "affected",
              "version": "19.1.0",
              "versionType": "semver"
            },
            {
              "lessThan": "19.2.4",
              "status": "affected",
              "version": "19.2.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "react-server-dom-parcel",
          "vendor": "Meta",
          "versions": [
            {
              "lessThan": "19.0.4",
              "status": "affected",
              "version": "19.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "19.1.5",
              "status": "affected",
              "version": "19.1.0",
              "versionType": "semver"
            },
            {
              "lessThan": "19.2.4",
              "status": "affected",
              "version": "19.2.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Multiple denial of service vulnerabilities exist in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack.\n\nThe vulnerabilities are triggered by sending specially crafted HTTP requests to Server Function endpoints, and could lead to server crashes, out-of-memory exceptions or excessive CPU usage; depending on the vulnerable code path being exercised, the application configuration and application code.\n\nStrongly consider upgrading to the latest package versions to reduce risk and prevent availability issues in applications using React Server Components."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "(CWE-502): Deserialization of Untrusted Data. (CWE-400): Uncontrolled Resource Consumption",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-26T19:16:38.250Z",
        "orgId": "4fc57720-52fe-4431-a0fb-3d2c8747b827",
        "shortName": "Meta"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.facebook.com/security/advisories/cve-2026-23864"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "4fc57720-52fe-4431-a0fb-3d2c8747b827",
    "assignerShortName": "Meta",
    "cveId": "CVE-2026-23864",
    "datePublished": "2026-01-26T19:16:38.250Z",
    "dateReserved": "2026-01-16T19:49:26.309Z",
    "dateUpdated": "2026-07-15T01:18:01.838Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"react-server-dom-webpack: react-server-dom-parcel: reactreact-server-dom-turbopack: React Server Components: Denial of Service via specially crafted HTTP requests\", \"metrics\": [{\"other\": {\"type\": \"Red Hat severity rating\", \"content\": {\"value\": \"Important\", \"namespace\": \"https://access.redhat.com/security/updates/classification/\"}}}, {\"format\": \"CVSS\", \"cvssV3_1\": {\"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\"}}], \"affected\": [{\"cpes\": [\"cpe:/a:redhat:amq_streams:2.9::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Streams for Apache Kafka 2.9.4\", \"packageName\": \"com.github.streamshub-console\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"unaffected\"}, {\"cpes\": [\"cpe:/a:redhat:amq_streams:3.2::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Streams for Apache Kafka 3.2.0\", \"packageName\": \"com.github.streamshub-console\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"unaffected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-01-26T20:01:54.396Z\", \"value\": \"Reported to Red Hat.\"}, {\"lang\": \"en\", \"time\": \"2026-01-26T19:16:38.250Z\", \"value\": \"Made public.\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"RHSA-2026:34608: Streams for Apache Kafka 2.9.4\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:13571: Streams for Apache Kafka 3.2.0\"}], \"x_adpType\": \"supplier\", \"datePublic\": \"2026-01-26T19:16:38.250Z\", \"references\": [{\"url\": \"https://access.redhat.com/security/cve/CVE-2026-23864\", \"tags\": [\"vdb-entry\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2433059\", \"name\": \"RHBZ#2433059\", \"tags\": [\"issue-tracking\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23864.json\", \"tags\": [\"x_sadp-csaf-vex\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:34608\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:13571\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}], \"x_generator\": {\"engine\": \"sadp-cli 1.0.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A flaw was found in React Server Components. A remote attacker can exploit this vulnerability by sending specially crafted HTTP requests to Server Function endpoints. This can lead to a Denial of Service (DoS), causing server crashes, out-of-memory exceptions, or excessive CPU usage, thereby impacting the availability of applications.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-1284\", \"description\": \"Improper Validation of Specified Quantity in Input\"}]}], \"providerMetadata\": {\"orgId\": \"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\", \"shortName\": \"redhat-SADP\", \"dateUpdated\": \"2026-07-15T01:18:01.838Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"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\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-23864\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-26T20:26:03.428817Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-502\", \"description\": \"CWE-502 Deserialization of Untrusted Data\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-400\", \"description\": \"CWE-400 Uncontrolled Resource Consumption\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-26T20:25:06.606Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"Meta\", \"product\": \"react-server-dom-webpack\", \"versions\": [{\"status\": \"affected\", \"version\": \"19.0.0\", \"lessThan\": \"19.0.4\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"19.1.0\", \"lessThan\": \"19.1.5\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"19.2.0\", \"lessThan\": \"19.2.4\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Meta\", \"product\": \"react-server-dom-turbopack\", \"versions\": [{\"status\": \"affected\", \"version\": \"19.0.0\", \"lessThan\": \"19.0.4\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"19.1.0\", \"lessThan\": \"19.1.5\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"19.2.0\", \"lessThan\": \"19.2.4\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Meta\", \"product\": \"react-server-dom-parcel\", \"versions\": [{\"status\": \"affected\", \"version\": \"19.0.0\", \"lessThan\": \"19.0.4\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"19.1.0\", \"lessThan\": \"19.1.5\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"19.2.0\", \"lessThan\": \"19.2.4\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://www.facebook.com/security/advisories/cve-2026-23864\", \"tags\": [\"x_refsource_CONFIRM\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Multiple denial of service vulnerabilities exist in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack.\\n\\nThe vulnerabilities are triggered by sending specially crafted HTTP requests to Server Function endpoints, and could lead to server crashes, out-of-memory exceptions or excessive CPU usage; depending on the vulnerable code path being exercised, the application configuration and application code.\\n\\nStrongly consider upgrading to the latest package versions to reduce risk and prevent availability issues in applications using React Server Components.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"(CWE-502): Deserialization of Untrusted Data. (CWE-400): Uncontrolled Resource Consumption\"}]}], \"providerMetadata\": {\"orgId\": \"4fc57720-52fe-4431-a0fb-3d2c8747b827\", \"shortName\": \"Meta\", \"dateUpdated\": \"2026-01-26T19:16:38.250Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-23864\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-07-15T01:18:01.838Z\", \"dateReserved\": \"2026-01-16T19:49:26.309Z\", \"assignerOrgId\": \"4fc57720-52fe-4431-a0fb-3d2c8747b827\", \"datePublished\": \"2026-01-26T19:16:38.250Z\", \"assignerShortName\": \"Meta\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.


Loading…

Loading…