CVE-2025-48888
Deno run with --allow-read and --deny-read flags results in allowed
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 5.5EPSS 0.3%KEV nãoPoC —Patch —
Lifecycle
Jun 04, 2025Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Affected products
denoland · denoWant to know if your infrastructure is exposed to this?
Talk to TrueHacking →References
https://github.com/denoland/deno/commit/2f0fae9d9071dcaf0a689bc7097584b1b9ebc8dbhttps://github.com/denoland/deno/commit/9d665572d3cd39f997e29e6daac7c1102fc5c04fhttps://github.com/denoland/deno/commit/ef315b56c26c9ef5f25284a5100d2ed525a148cfhttps://github.com/denoland/deno/pull/22894https://github.com/denoland/deno/pull/29213https://github.com/denoland/deno/security/advisories/GHSA-xqxc-x6p3-w683