CVE-2025-48888
Medium
Description
Deno is a JavaScript, TypeScript, and WebAssembly runtime. Starting in version 1.41.3 and prior to versions 2.1.13, 2.2.13, and 2.3.2, `deno run --allow-read --deny-read main.ts` results in allowed, even though 'deny' should be stronger. The result is the same with all global unary permissions given as `--allow-* --deny-*`. This only affects a nonsensical combination of flags, so there shouldn't be a real impact on the userbase. Users may upgrade to version 2.1.13, 2.2.13, or 2.3.2 to receive a patch.
SeverityMedium
CVSS5.3
Exploit probability—
Product
Deno
PublishedJun 4, 2025
First seenJun 4, 2025
Weakness typeCWE-863Incorrect authorization
How to fix
Update
- deno deno2.1.13, 2.2.13, 2.3.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| deno deno | 1.41.3 ≤ v < 2.1.13, 2.2.0 ≤ v < 2.2.13, 2.3.0 ≤ v < 2.3.2 | 2.1.13, 2.2.13, 2.3.2 |
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