{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-23864", "assignerOrgId": "4fc57720-52fe-4431-a0fb-3d2c8747b827", "state": "PUBLISHED", "assignerShortName": "Meta", "dateReserved": "2026-01-16T19:49:26.309Z", "datePublished": "2026-01-26T19:16:38.250Z", "dateUpdated": "2026-07-15T01:18:01.838Z" }, "containers": { "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": { "orgId": "4fc57720-52fe-4431-a0fb-3d2c8747b827", "shortName": "Meta", "dateUpdated": "2026-01-26T19:16:38.250Z" }, "references": [ { "tags": [ "x_refsource_CONFIRM" ], "url": "https://www.facebook.com/security/advisories/cve-2026-23864" } ] }, "adp": [ { "problemTypes": [ { "descriptions": [ { "type": "CWE", "cweId": "CWE-502", "lang": "en", "description": "CWE-502 Deserialization of Untrusted Data" } ] }, { "descriptions": [ { "type": "CWE", "cweId": "CWE-400", "lang": "en", "description": "CWE-400 Uncontrolled Resource Consumption" } ] } ], "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": { "timestamp": "2026-01-26T20:26:03.428817Z", "id": "CVE-2026-23864", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-26T20:26:45.709Z" } }, { "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" } ] } ], "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" }, "providerMetadata": { "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-07-15T01:18:01.838Z" } } ] } }