{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-22T01:49:57.997","vulnerabilities":[{"cve":{"id":"CVE-2026-21636","sourceIdentifier":"support@hackerone.com","published":"2026-01-20T21:16:05.813","lastModified":"2026-01-30T20:20:56.843","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"A flaw in Node.js's permission model allows Unix Domain Socket (UDS) connections to bypass network restrictions when `--permission` is enabled. Even without `--allow-net`, attacker-controlled inputs (such as URLs or socketPath options) can connect to arbitrary local sockets via net, tls, or undici/fetch. This breaks the intended security boundary of the permission model and enables access to privileged local services, potentially leading to privilege escalation, data exposure, or local code execution.\n\n* The issue affects users of the Node.js permission model on version v25.\n\nIn the moment of this vulnerability, network permissions (`--allow-net`) are still in the experimental phase."},{"lang":"es","value":"Una falla en el modelo de permisos de Node.js permite que las conexiones de Unix Domain Socket (UDS) eludan las restricciones de red cuando '--permission' está habilitado. Incluso sin '--allow-net', las entradas controladas por el atacante (como URLs u opciones de socketPath) pueden conectarse a sockets locales arbitrarios a través de net, tls o undici/fetch. Esto rompe el límite de seguridad previsto del modelo de permisos y permite el acceso a servicios locales privilegiados, lo que podría llevar a escalada de privilegios, exposición de datos o ejecución de código local.\n\n* El problema afecta a los usuarios del modelo de permisos de Node.js en la versión v25.\n\nEn el momento de esta vulnerabilidad, los permisos de red ('--allow-net') todavía están en fase experimental."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","baseScore":10.0,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":6.0}],"cvssMetricV30":[{"source":"support@hackerone.com","type":"Secondary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N","baseScore":5.8,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":1.4}]},"weaknesses":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","description":[{"lang":"en","value":"CWE-284"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*","versionStartIncluding":"25.0.0","versionEndExcluding":"25.3.0","matchCriteriaId":"970EF154-D905-4FDA-85CB-C3AB08BEFAEC"}]}]}],"references":[{"url":"https://nodejs.org/en/blog/vulnerability/december-2025-security-releases","source":"support@hackerone.com","tags":["Vendor Advisory","Release Notes"]}]}}]}