medium5.3
CVE-2025-48888
Deno run with --allow-read and --deny-read flags results in allowed
Impact
### 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 packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| rust | deno | >= 1.41.3, < 2.1.13 | 2.1.13 |
| rust | deno_runtime | >= 0.150.0, < 0.212.0 | 0.212.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Deno | Deno | from 1.41.3 before 2.1.13 from 2.2.0 before 2.2.13 from 2.3.0 before 2.3.2 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/denoland/deno/commit/2f0fae9d9071dcaf0a689bc7097584b1b9ebc8db
- https://github.com/denoland/deno/commit/9d665572d3cd39f997e29e6daac7c1102fc5c04f
- https://github.com/denoland/deno/commit/ef315b56c26c9ef5f25284a5100d2ed525a148cf
- https://github.com/denoland/deno/pull/22894
- https://github.com/denoland/deno/pull/29213
- https://github.com/denoland/deno/security/advisories/GHSA-xqxc-x6p3-w683
- https://github.com/advisories/GHSA-xqxc-x6p3-w683
- https://nvd.nist.gov/vuln/detail/CVE-2025-48888