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.
Project Subscriptions
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Advisories
| Source | ID | Title |
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Github GHSA |
GHSA-8xpq-cjcf-3wh9 | Deno: Permission Bypass via Unicode Normalization Mismatch on macOS (APFS) |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Tue, 23 Jun 2026 19:30:00 +0000
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ssvc
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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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| References |
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| Metrics |
cvssV3_1
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Projects
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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: 2026-06-23T22:00:09Z
Github GHSA