#VU86811 Inefficient regular expression complexity in Showdown - CVE-2024-1899

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Main Vulnerability Database Vulnerabilities #VU86811

#VU86811 Inefficient regular expression complexity in Showdown - CVE-2024-1899

Published: February 27, 2024


Vulnerability identifier: #VU86811
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-2024-1899
CWE-ID: CWE-1333
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Showdown
Software vendor:
Showdownjs

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient input validation in subparser when processing links with a regular expressions. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.


Remediation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

External links