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.
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Tue, 23 Jun 2026 19:30:00 +0000
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Tue, 23 Jun 2026 17:30:00 +0000
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| 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. | |
| Title | Deno Permission Bypass via Unicode Normalization Mismatch on macOS (APFS) | |
| Weaknesses | CWE-176 CWE-41 |
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-06-23T17:35:51.803Z
Reserved: 2026-05-29T19:08:01.256Z
Link: CVE-2026-49401
Updated: 2026-06-23T17:35:48.716Z
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OpenCVE Enrichment
Updated: 2026-06-23T19:00:07Z