GHSA-xqxc-x6p3-w683
Deno run with --allow-read and --deny-read flags results in allowed
Details
### 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.
Are you affected?
Enter the version of the package you're using.
Affected packages
1.41.3Fixed in: 2.1.13Upgrade deno to 2.1.13 or newer (ecosystem crates.io).
2.2.0Fixed in: 2.2.13Upgrade deno to 2.2.13 or newer (ecosystem crates.io).
2.3.0Fixed in: 2.3.2Upgrade deno to 2.3.2 or newer (ecosystem crates.io).
0.150.0Fixed in: 0.212.0Upgrade deno_runtime to 0.212.0 or newer (ecosystem crates.io).
References
- https://github.com/denoland/deno/security/advisories/GHSA-xqxc-x6p3-w683[WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2025-48888[ADVISORY]
- https://github.com/denoland/deno/pull/22894[WEB]
- https://github.com/denoland/deno/pull/29213[WEB]
- https://github.com/denoland/deno/commit/2f0fae9d9071dcaf0a689bc7097584b1b9ebc8db[WEB]
- https://github.com/denoland/deno/commit/9d665572d3cd39f997e29e6daac7c1102fc5c04f[WEB]
- https://github.com/denoland/deno/commit/ef315b56c26c9ef5f25284a5100d2ed525a148cf[WEB]
- https://github.com/denoland/deno[PACKAGE]