{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-15T02:54:20.793","vulnerabilities":[{"cve":{"id":"CVE-2026-2581","sourceIdentifier":"ce714d77-add3-4f53-aff5-83d477b104bb","published":"2026-03-12T21:16:25.930","lastModified":"2026-03-18T13:37:08.920","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"This is an uncontrolled resource consumption vulnerability (CWE-400) that can lead to Denial of Service (DoS).\n\nIn vulnerable Undici versions, when interceptors.deduplicate() is enabled, response data for deduplicated requests could be accumulated in memory for downstream handlers. An attacker-controlled or untrusted upstream endpoint can exploit this with large/chunked responses and concurrent identical requests, causing high memory usage and potential OOM process termination.\n\nImpacted users are applications that use Undici’s deduplication interceptor against endpoints that may produce large or long-lived response bodies.\n\nPatchesThe issue has been patched by changing deduplication behavior to stream response chunks to downstream handlers as they arrive (instead of full-body accumulation), and by preventing late deduplication when body streaming has already started.\n\nUsers should upgrade to the first official Undici (and Node.js, where applicable) releases that include this patch."},{"lang":"es","value":"Esta es una vulnerabilidad de consumo de recursos no controlado (CWE-400) que puede conducir a una denegación de servicio (DoS).\n\nEn versiones vulnerables de Undici, cuando interceptors.deduplicate() está habilitado, los datos de respuesta para solicitudes deduplicadas podrían acumularse en la memoria para los manejadores posteriores. Un endpoint ascendente controlado por un atacante o no confiable puede explotar esto con respuestas grandes/en fragmentos y solicitudes idénticas concurrentes, causando un alto uso de memoria y una posible terminación del proceso por OOM.\n\nLos usuarios afectados son aplicaciones que utilizan el interceptor de deduplicación de Undici contra endpoints que pueden producir cuerpos de respuesta grandes o de larga duración.\n\nParches. El problema ha sido parcheado cambiando el comportamiento de deduplicación para transmitir fragmentos de respuesta a los manejadores posteriores a medida que llegan (en lugar de la acumulación del cuerpo completo), y evitando la deduplicación tardía cuando la transmisión del cuerpo ya ha comenzado.\n\nLos usuarios deberían actualizar a las primeras versiones oficiales de Undici (y Node.js, cuando corresponda) que incluyan este parche."}],"metrics":{"cvssMetricV31":[{"source":"ce714d77-add3-4f53-aff5-83d477b104bb","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":5.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.2,"impactScore":3.6}]},"weaknesses":[{"source":"ce714d77-add3-4f53-aff5-83d477b104bb","type":"Secondary","description":[{"lang":"en","value":"CWE-770"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:nodejs:undici:*:*:*:*:*:node.js:*:*","versionStartIncluding":"7.17.0","versionEndExcluding":"7.24.0","matchCriteriaId":"F59DFD47-C8E0-425D-86EA-D9B0496EA2B6"}]}]}],"references":[{"url":"https://cna.openjsf.org/security-advisories.html","source":"ce714d77-add3-4f53-aff5-83d477b104bb","tags":["Vendor Advisory"]},{"url":"https://github.com/nodejs/undici/security/advisories/GHSA-phc3-fgpg-7m6h","source":"ce714d77-add3-4f53-aff5-83d477b104bb","tags":["Mitigation","Vendor Advisory"]},{"url":"https://hackerone.com/reports/3513473","source":"ce714d77-add3-4f53-aff5-83d477b104bb","tags":["Permissions Required"]}]}}]}