{"id":"CVE-2026-49401","sourceIdentifier":"security-advisories@github.com","published":"2026-06-23T18:18:03.033","lastModified":"2026-10-25T23:10:00.167","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to 2.7.14, Deno's permission system enforces filesystem and execution restrictions by comparing the requested path against the path supplied to --deny-read, --deny-write, --deny-run, or --deny-ffi. On macOS, that comparison was done at the raw-byte level while the APFS filesystem treats different Unicode spellings of the same name as the same file. That means a program could reach a denied path by spelling it differently than the deny rule. This vulnerability is fixed in 2.7.14."},{"lang":"es","value":"Deno es un entorno de ejecución de JavaScript, TypeScript y WebAssembly. Antes de la versión 2.7.14, el sistema de permisos de Deno aplicaba restricciones de sistema de archivos y ejecución comparando la ruta solicitada con la ruta proporcionada a --deny-read, --deny-write, --deny-run o --deny-ffi. En macOS, esa comparación se realizaba a nivel de bytes sin procesar, mientras que el sistema de archivos APFS trata diferentes escrituras Unicode del mismo nombre como el mismo archivo. Eso significa que un programa podría acceder a una ruta denegada escribiéndola de manera diferente a la regla de denegación. Esta vulnerabilidad está corregida en la versión 2.7.14."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"denoland","product":"deno","versions":[{"version":"< 2.7.14","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N","baseScore":7.3,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":2.0,"impactScore":4.7},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","baseScore":8.4,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":2.0,"impactScore":5.8}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-06-23T17:35:46.438186Z","id":"CVE-2026-49401","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Primary","description":[{"lang":"en","value":"CWE-41"},{"lang":"en","value":"CWE-176"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:*","versionEndExcluding":"2.7.14","matchCriteriaId":"6D9303E8-C864-4B87-85A9-54A72C7DADEA"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*","matchCriteriaId":"387021A0-AF36-463C-A605-32EA7DAC172E"}]}]}],"references":[{"url":"https://github.com/denoland/deno/security/advisories/GHSA-8xpq-cjcf-3wh9","source":"security-advisories@github.com","tags":["Exploit","Mitigation","Vendor Advisory"]}]}