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Vulnerability record · CVE-2021-32619 · published 28 May 2021

CVE-2021-32619: Deno improper authorization vulnerability

Deno · Deno

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.

9.8 CVSS 3.1 Critical EPSS 1.1% · top 35.4% CWE-285 · Improper authorizationCWE-863 · Incorrect authorization
9.8CVSS 3.1 base score, v2 7.5
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/denoland/deno/security/advisories/GHSA-xpwj-7v8q-mcgj Third Party Advisory
https://github.com/denoland/deno/security/advisories/GHSA-xpwj-7v8q-mcgj Third Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-32619), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.