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Medium · 5.5 CVE-2025-48888 EUVD-2025-16912GHSA-xqxc-x6p3-w683

Deno run with --allow-read and --deny-read flags results in allowed

Published Jun 4, 2025 · Updated Jun 4, 2025 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
denoland deno >= 1.41.3, < 2.1.13, >= 2.2.0, < 2.2.13, >= 2.3.0, < 2.3.2 —

Affected packages

EcosystemPackageAffectedFixedRecord
crates.io deno >= 1.41.3, < 2.1.13 2.1.13 GHSA-xqxc-x6p3-w683
crates.io deno >= 2.2.0, < 2.2.13 2.2.13 GHSA-xqxc-x6p3-w683
crates.io deno >= 2.3.0, < 2.3.2 2.3.2 GHSA-xqxc-x6p3-w683
crates.io deno_runtime >= 0.150.0, < 0.212.0 0.212.0 GHSA-xqxc-x6p3-w683

References