CVE-2026-25224

{"id": "CVE-2026-25224", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-25224", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-02-04T16:20:26.988188Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.7, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 2.2}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "fastify", "product": "fastify", "versions": [{"status": "affected", "version": "< 5.7.3"}]}]}], "published": "2026-02-03T22:16:31.290", "references": [{"url": "https://github.com/fastify/fastify/commit/eb11156396f6a5fedaceed0140aed2b7f026be37", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/fastify/fastify/security/advisories/GHSA-mrq3-vjjr-p77c", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://hackerone.com/reports/3524779", "tags": ["Permissions Required"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-770"}]}], "descriptions": [{"lang": "en", "value": "Fastify is a fast and low overhead web framework, for Node.js. Prior to version 5.7.3, a denial-of-service vulnerability in Fastify\u2019s Web Streams response handling can allow a remote client to exhaust server memory. Applications that return a ReadableStream (or Response with a Web Stream body) via reply.send() are impacted. A slow or non-reading client can trigger unbounded buffering when backpressure is ignored, leading to process crashes or severe degradation. This issue has been patched in version 5.7.3."}, {"lang": "es", "value": "Fastify es un framework web r\u00e1pido y de baja sobrecarga, para Node.js. Antes de la versi\u00f3n 5.7.3, una vulnerabilidad de denegaci\u00f3n de servicio en el manejo de respuestas de Web Streams de Fastify puede permitir a un cliente remoto agotar la memoria del servidor. Las aplicaciones que devuelven un ReadableStream (o una Response con un cuerpo de Web Stream) a trav\u00e9s de reply.send() se ven afectadas. Un cliente lento o que no lee puede desencadenar un almacenamiento en b\u00fafer ilimitado cuando se ignora la contrapresi\u00f3n, lo que lleva a ca\u00eddas del proceso o una degradaci\u00f3n severa. Este problema ha sido parcheado en la versi\u00f3n 5.7.3."}], "lastModified": "2026-06-17T10:24:20.147", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:fastify:fastify:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "70F0A157-C97E-4AB3-8B64-D6B21301B2DD", "versionEndExcluding": "5.7.3"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}