#VU112171 Inefficient regular expression complexity in request-error.js - CVE-2025-25289
Published: July 4, 2025
Vulnerability identifier: #VU112171
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-25289
CWE-ID: CWE-1333
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
request-error.js
request-error.js
Software vendor:
octokit
octokit
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient input validation when processing untrusted input with a regular expressions in the processing of HTTP request headers. A remote attacker can send an authorization header containing an excessively long sequence of spaces followed by a newline and "@" to exploit inefficient regular expression processing and leading to excessive resource consumption.
Remediation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability..