Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/350876?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/350876?format=api", "vulnerability_id": "VCID-fa57-smff-sbg2", "summary": "A denial of service vulnerability exists in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack and react-server-dom-webpack (versions 19.0.0 through 19.0.4, 19.1.0 through 19.1.5, and 19.2.0 through 19.2.4). The vulnerability is triggered by sending specially crafted HTTP requests to Server Function endpoints.The payload of the HTTP request causes excessive CPU usage for up to a minute ending in a thrown error that is catchable.", "aliases": [ { "alias": "CVE-2026-23869" }, { "alias": "GHSA-479c-33wc-g2pg" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/1060876?format=api", "purl": "pkg:npm/react-server-dom-parcel@19.1.6", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/react-server-dom-parcel@19.1.6" }, { "url": "http://public2.vulnerablecode.io/api/packages/1060877?format=api", "purl": "pkg:npm/react-server-dom-parcel@19.2.5", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/react-server-dom-parcel@19.2.5" }, { "url": "http://public2.vulnerablecode.io/api/packages/1060878?format=api", "purl": "pkg:npm/react-server-dom-turbopack@19.0.5", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/react-server-dom-turbopack@19.0.5" }, { "url": "http://public2.vulnerablecode.io/api/packages/1060879?format=api", "purl": "pkg:npm/react-server-dom-turbopack@19.1.6", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/react-server-dom-turbopack@19.1.6" }, { "url": "http://public2.vulnerablecode.io/api/packages/1060880?format=api", "purl": "pkg:npm/react-server-dom-turbopack@19.2.5", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/react-server-dom-turbopack@19.2.5" }, { "url": "http://public2.vulnerablecode.io/api/packages/1060881?format=api", "purl": "pkg:npm/react-server-dom-webpack@19.0.5", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/react-server-dom-webpack@19.0.5" }, { "url": "http://public2.vulnerablecode.io/api/packages/1060882?format=api", "purl": "pkg:npm/react-server-dom-webpack@19.1.6", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/react-server-dom-webpack@19.1.6" }, { "url": "http://public2.vulnerablecode.io/api/packages/1060883?format=api", "purl": "pkg:npm/react-server-dom-webpack@19.2.5", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/react-server-dom-webpack@19.2.5" } ], "affected_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/66715?format=api", "purl": "pkg:npm/react-server-dom-parcel@19.0.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-bwdv-fw3h-dfce" }, { "vulnerability": "VCID-fa57-smff-sbg2" }, { "vulnerability": "VCID-hznz-envu-kfcq" }, { "vulnerability": "VCID-pqwe-3ukm-dkh4" }, { "vulnerability": "VCID-q3r3-ykj4-3qbr" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/react-server-dom-parcel@19.0.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/66717?format=api", "purl": "pkg:npm/react-server-dom-parcel@19.1.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-bwdv-fw3h-dfce" }, { "vulnerability": "VCID-fa57-smff-sbg2" }, { "vulnerability": "VCID-hznz-envu-kfcq" }, { "vulnerability": "VCID-pqwe-3ukm-dkh4" }, { "vulnerability": "VCID-q3r3-ykj4-3qbr" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/react-server-dom-parcel@19.1.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/66718?format=api", "purl": "pkg:npm/react-server-dom-parcel@19.2.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-bwdv-fw3h-dfce" }, { "vulnerability": "VCID-fa57-smff-sbg2" }, { "vulnerability": "VCID-hznz-envu-kfcq" }, { "vulnerability": "VCID-pqwe-3ukm-dkh4" }, { "vulnerability": "VCID-q3r3-ykj4-3qbr" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/react-server-dom-parcel@19.2.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/66681?format=api", "purl": "pkg:npm/react-server-dom-turbopack@19.0.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-bwdv-fw3h-dfce" }, { "vulnerability": "VCID-fa57-smff-sbg2" }, { "vulnerability": "VCID-hznz-envu-kfcq" }, { "vulnerability": "VCID-pqwe-3ukm-dkh4" }, { "vulnerability": "VCID-q3r3-ykj4-3qbr" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/react-server-dom-turbopack@19.0.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/66682?format=api", "purl": "pkg:npm/react-server-dom-turbopack@19.1.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-bwdv-fw3h-dfce" }, { "vulnerability": "VCID-fa57-smff-sbg2" }, { "vulnerability": "VCID-hznz-envu-kfcq" }, { "vulnerability": "VCID-pqwe-3ukm-dkh4" }, { "vulnerability": "VCID-q3r3-ykj4-3qbr" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/react-server-dom-turbopack@19.1.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/66683?format=api", "purl": "pkg:npm/react-server-dom-turbopack@19.2.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-bwdv-fw3h-dfce" }, { "vulnerability": "VCID-fa57-smff-sbg2" }, { "vulnerability": "VCID-hznz-envu-kfcq" }, { "vulnerability": "VCID-pqwe-3ukm-dkh4" }, { "vulnerability": "VCID-q3r3-ykj4-3qbr" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/react-server-dom-turbopack@19.2.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/66723?format=api", "purl": "pkg:npm/react-server-dom-webpack@19.0.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-bwdv-fw3h-dfce" }, { "vulnerability": "VCID-fa57-smff-sbg2" }, { "vulnerability": "VCID-hznz-envu-kfcq" }, { "vulnerability": "VCID-pqwe-3ukm-dkh4" }, { "vulnerability": "VCID-q3r3-ykj4-3qbr" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/react-server-dom-webpack@19.0.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/66724?format=api", "purl": "pkg:npm/react-server-dom-webpack@19.1.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-bwdv-fw3h-dfce" }, { "vulnerability": "VCID-fa57-smff-sbg2" }, { "vulnerability": "VCID-hznz-envu-kfcq" }, { "vulnerability": "VCID-pqwe-3ukm-dkh4" }, { "vulnerability": "VCID-q3r3-ykj4-3qbr" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/react-server-dom-webpack@19.1.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/66725?format=api", "purl": "pkg:npm/react-server-dom-webpack@19.2.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-bwdv-fw3h-dfce" }, { "vulnerability": "VCID-fa57-smff-sbg2" }, { "vulnerability": "VCID-hznz-envu-kfcq" }, { "vulnerability": "VCID-pqwe-3ukm-dkh4" }, { "vulnerability": "VCID-q3r3-ykj4-3qbr" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:npm/react-server-dom-webpack@19.2.0" } ], "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-23869.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-23869.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-23869", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00322", "scoring_system": "epss", "scoring_elements": "0.55259", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.00322", "scoring_system": "epss", "scoring_elements": "0.5522", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.00322", "scoring_system": "epss", "scoring_elements": "0.55238", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.00322", "scoring_system": "epss", "scoring_elements": "0.55247", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.00688", "scoring_system": "epss", "scoring_elements": "0.71777", "published_at": "2026-04-18T12:55:00Z" }, { "value": "0.00688", "scoring_system": "epss", "scoring_elements": "0.71772", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.00688", "scoring_system": "epss", "scoring_elements": "0.7176", "published_at": "2026-04-21T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-23869" }, { "reference_url": "https://github.com/facebook/react", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/facebook/react" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23869", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23869" }, { "reference_url": "https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=2456663", "reference_id": "2456663", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2456663" }, { "reference_url": "https://github.com/advisories/GHSA-479c-33wc-g2pg", "reference_id": "GHSA-479c-33wc-g2pg", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-479c-33wc-g2pg" }, { "reference_url": "https://github.com/facebook/react/security/advisories/GHSA-479c-33wc-g2pg", "reference_id": "GHSA-479c-33wc-g2pg", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" }, { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-04-08T19:55:33Z/" } ], "url": "https://github.com/facebook/react/security/advisories/GHSA-479c-33wc-g2pg" } ], "weaknesses": [ { "cwe_id": 502, "name": "Deserialization of Untrusted Data", "description": "The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid." }, { "cwe_id": 400, "name": "Uncontrolled Resource Consumption", "description": "The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources." }, { "cwe_id": 770, "name": "Allocation of Resources Without Limits or Throttling", "description": "The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor." } ], "exploits": [], "severity_range_score": "7.0 - 8.9", "exploitability": "0.5", "weighted_severity": "8.0", "risk_score": 4.0, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-fa57-smff-sbg2" }