{"id":"CVE-2026-49401","state":"PUBLISHED","title":"Deno Permission Bypass via Unicode Normalization Mismatch on macOS (APFS)","description":"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.","publishedAt":"2026-06-23T17:22:32.266Z","updatedAt":"2026-07-31T13:15:42.807Z","severity":{"score":7.3,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["denoland deno"],"affected":[{"vendor":"denoland","product":"deno","versions":[{"version":"< 2.7.14","status":"affected"}]}],"references":["https://github.com/denoland/deno/security/advisories/GHSA-8xpq-cjcf-3wh9"],"weaknesses":["CWE-41","CWE-176"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/49xxx/CVE-2026-49401.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-49401","state":"PUBLISHED","datePublished":"2026-06-23T17:22:32.266Z","dateUpdated":"2026-07-31T13:15:42.807Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-29T19:08:01.256Z"},"containers":{"cna":{"title":"Deno Permission Bypass via Unicode Normalization Mismatch on macOS (APFS)","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."}],"affected":[{"vendor":"denoland","product":"deno","versions":[{"version":"< 2.7.14","status":"affected"}]}],"references":[{"url":"https://github.com/denoland/deno/security/advisories/GHSA-8xpq-cjcf-3wh9","name":"https://github.com/denoland/deno/security/advisories/GHSA-8xpq-cjcf-3wh9","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":7.3,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-41","lang":"en","description":"CWE-41: Improper Resolution of Path Equivalence","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-176","lang":"en","description":"CWE-176: Improper Handling of Unicode Encoding","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-31T13:15:42.807Z"},"source":{"advisory":"GHSA-8xpq-cjcf-3wh9","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-23T17:35:46.438186Z","id":"CVE-2026-49401","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-23T17:35:51.803Z"}}]}}}