#VU63698 Incorrect Regular Expression in normalize-url - CVE-2021-33502
Published: May 26, 2022 / Updated: May 26, 2022
Vulnerability identifier: #VU63698
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-33502
CWE-ID: CWE-185
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
normalize-url
normalize-url
Software vendor:
Sindre Sorhus
Sindre Sorhus
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to exponential performance for data. A remote attacker can pass specially crafted data to the application and perform a regular expression denial of service (ReDos) attack.
Remediation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability..