CVE-2021-33502

Aliases:GHSA-px4h-xg32-q955
Advisory lineage Upstream: 0 Downstream: 9
Modified
Published: 24 May 2021, 15:42
Last modified:03 Aug 2024, 23:50

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
v3.1 (nvd)
EPSS Score
0.36% LOW
0% probability +0.03%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

24 May 2021, 15:42
Published
Vulnerability first disclosed
03 Aug 2024, 23:50
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 0.36%• Percentile: 58%

Techniques & Countermeasures

  • CWE-1333•Inefficient Regular Expression Complexity

    The product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential.

Affected Systems

  • normalize-url_project•normalize-url

    ≥ 4.3.0, < 4.5.1 | ≥ 5.0.0, < 5.3.1 | 6.0.0

  • Npm•normalize-url

    ≥ 4.3.0, < 4.5.1 | ≥ 5.0.0, < 5.3.1 | ≥ 6.0.0, < 6.0.1

References (6)