CVE-2025-48888

MediumCVSS 5.3/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-863

Affected software

Vendor	Product	Versions
denoland	deno	>= 1.41.3, < 2.1.13; >= 2.2.0, < 2.2.13; >= 2.3.0, < 2.3.2

References

https://github.com/denoland/deno/commit/2f0fae9d9071dcaf0a689bc7097584b1b9ebc8dbPatch
https://github.com/denoland/deno/commit/9d665572d3cd39f997e29e6daac7c1102fc5c04fPatch
https://github.com/denoland/deno/commit/ef315b56c26c9ef5f25284a5100d2ed525a148cfPatch
https://github.com/denoland/deno/pull/22894Issue Tracking, Patch
https://github.com/denoland/deno/pull/29213Issue Tracking, Patch
https://github.com/denoland/deno/security/advisories/GHSA-xqxc-x6p3-w683Exploit, Vendor Advisory
https://github.com/denoland/deno/security/advisories/GHSA-xqxc-x6p3-w683Exploit, Vendor Advisory

Timeline

Published: Jun 4, 2025
Last modified: Jun 17, 2026
NVD status: Analyzed

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