Critical severity · published May 28, 2021
CVE-2021-32619
Deno is a runtime for JavaScript and TypeScript that uses V8 and is built in Rust
9.8
CVSS
1.1%
EPSS
No
On KEV
Description
Deno is a runtime for JavaScript and TypeScript that uses V8 and is built in Rust. In Deno versions 1.5.0 to 1.10.1, modules that are dynamically imported through `import()` or `new Worker` might have been able to bypass network and file system permission checks when statically importing other modules. The vulnerability has been patched in Deno release 1.10.2.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 66% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DE
Deno · Deno
1.5.0 before 1.10.2 · source: NVD
Affected product
DE
Deno
Deno
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CVE-2026-22864
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CVE-2023-33966
Deno missing "--allow-net" permission check for built-in Node modules