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VULNERABILITIES

CVE-2021-33502 Details

Description

The normalize-url package before 4.5.1, 5.x before 5.3.1, and 6.x before 6.0.1 for Node.js has a ReDoS (regular expression denial of service) issue because it has exponential performance for data: URLs.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/sindresorhus/normalize-url/releases/tag/v6.0.1 CVERelease NotesThird Party Advisory
https://security.netapp.com/advisory/ntap-20210706-0001/ CVEThird Party Advisory
https://github.com/sindresorhus/normalize-url/releases/tag/v6.0.1 [email protected]Release NotesThird Party Advisory
https://security.netapp.com/advisory/ntap-20210706-0001/ [email protected]Third Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-1333Inefficient Regular Expression Complexity[email protected]

Affected Products

ProductVersions
normalize-url project normalize-url
>= 4.3.0, < 4.5.1
>= 5.0.0, < 5.3.1
6.0.0

CPE

  • cpe:2.3:a:normalize-url_project:normalize-url:*:*:*:*:*:node.js:*:*
  • cpe:2.3:a:normalize-url_project:normalize-url:6.0.0:*:*:*:*:node.js:*:*

Remediation

  • No remediation found in references.

Change History

8 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-33502
NVD Published Date:
May 24, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-33502 Details - Not Deferred