GHSA-xqxc-x6p3-w683MediumCVSS 5.3
Deno run with --allow-read and --deny-read flags results in allowed
🔗 CVE IDs covered (1)
📋 Description
Summary
deno run --allow-read --deny-read main.ts results in allowed, even though 'deny' should be stronger. Same with all global unary permissions given as --allow-* --deny-*.
Details
Caused by the fast exit logic in #22894.
PoC
Run the above command expecting no permissions to be passed.
Impact
This only affects a nonsensical combination of flags, so there shouldn't be a real impact on the userbase.
🎯 Affected products4
- rust/deno:>= 1.41.3, < 2.1.13
- rust/deno:>= 2.2.0, < 2.2.13
- rust/deno:>= 2.3.0, < 2.3.2
- rust/deno_runtime:>= 0.150.0, < 0.212.0
🔗 References (8)
- https://github.com/denoland/deno/security/advisories/GHSA-xqxc-x6p3-w683
- https://github.com/denoland/deno/pull/22894
- https://github.com/denoland/deno/pull/29213
- https://github.com/denoland/deno/commit/2f0fae9d9071dcaf0a689bc7097584b1b9ebc8db
- https://github.com/denoland/deno/commit/9d665572d3cd39f997e29e6daac7c1102fc5c04f
- https://github.com/denoland/deno/commit/ef315b56c26c9ef5f25284a5100d2ed525a148cf
- https://nvd.nist.gov/vuln/detail/CVE-2025-48888
- https://github.com/advisories/GHSA-xqxc-x6p3-w683