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react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints."}], "id": "CVE-2025-55182", "lastModified": "2025-12-06T02:00:02.510", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 10.0, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 6.0, "source": "cve-assign@fb.com", "type": "Secondary"}]}, "published": "2025-12-03T16:15:56.463", "references": [{"source": "cve-assign@fb.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components"}, {"source": "cve-assign@fb.com", "tags": ["Vendor Advisory"], "url": "https://www.facebook.com/security/advisories/cve-2025-55182"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2025/12/03/4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking"], "url": "https://news.ycombinator.com/item?id=46136026"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Third Party Advisory"], "url": "https://aws.amazon.com/blogs/security/china-nexus-cyber-threat-groups-rapidly-exploit-react2shell-vulnerability-cve-2025-55182/"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["US Government Resource"], "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-55182"}], "sourceIdentifier": "cve-assign@fb.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-502"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "next: From CVEorg collector", "id": "2418613", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2418613"}, "csaw": false, "cvss3": {"cvss3_base_score": "10.0", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-502", "details": ["A pre-authentication remote code execution vulnerability exists in React Server Components versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints.", "A flaw was found in the React Server Components (RSC) protocol in which an attacker could send a malicious package to a Server Function endpoint and cause unauthenticated remote code execution. This is possible due to the way the affected packages deserialized untrusted data."], "name": "CVE-2025-55182", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "dotnet7.0", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:enterprise_linux_ai:3", "fix_state": "Not affected", "package_name": "rhelai3/bootc-cuda-rhel9", "product_name": "Red Hat Enterprise Linux AI (RHEL AI) 3"}, {"cpe": "cpe:/a:redhat:enterprise_linux_ai:3", "fix_state": "Not affected", "package_name": "rhelai3/disk-image-cuda-rhel9", "product_name": "Red Hat Enterprise Linux AI (RHEL AI) 3"}, {"cpe": "cpe:/a:redhat:trusted_artifact_signer:1", "fix_state": "Not affected", "package_name": "rhtas/rekor-search-ui-rhel9", "product_name": "Red Hat Trusted Artifact Signer"}, {"cpe": "cpe:/a:redhat:amq_streams:2", "fix_state": "Not affected", "package_name": "com.github.streamshub-console", "product_name": "streams for Apache Kafka 2"}, {"cpe": "cpe:/a:redhat:amq_streams:3", "fix_state": "Not affected", "package_name": "com.github.streamshub-console", "product_name": "streams for Apache Kafka 3"}], "public_date": "2025-12-03T15:40:56Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-55182\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-55182\nhttps://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components\nhttps://www.facebook.com/security/advisories/cve-2025-55182"], "statement": "No Red Hat software includes the directly affected React Server Components packages (react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack). However, the reference implementation of React Server Components is used by other projects such as Next.js. Next.js requested a CVE to track their impacted versions, CVE-2025-66478, but that CVE was rejected as a duplicate of this one. The packages listed here include Next.js as a dependency, but our analysis indicates that they are not affected by the vulnerability as they do not use the App Router functionality that exposes endpoints serving the vulnerable protocol.", "threat_severity": "Critical"}

{"created": "2025-12-04T16:44:12.482427+00:00", "updated": "2025-12-04T16:44:12.482454+00:00", "vendors": ["facebook", "facebook$PRODUCT$react-server-dom-parcel", "facebook$PRODUCT$react-server-dom-turbopack", "facebook$PRODUCT$react-server-dom-webpack"]}