CVE-2025-25200

CRITICAL Year: 2025
Weakness Type
CWE-1333
View all →

Vulnerability Description

Koa is expressive middleware for Node.js using ES2017 async functions. Prior to versions 0.21.2, 1.7.1, 2.15.4, and 3.0.0-alpha.3, Koa uses an evil regex to parse the `X-Forwarded-Proto` and `X-Forwarded-Host` HTTP headers. This can be exploited to carry out a Denial-of-Service attack. Versions 0.21.2, 1.7.1, 2.15.4, and 3.0.0-alpha.3 fix the issue.

Related Vulnerabilities

CVE-2023-29486

CRITICAL
CVSS:9.8(Critical)

An issue was discovered in Heimdal Thor agent versions 3.4.2 and before 3.7.0 on Windows, allows attackers to bypass USB access restrictions, execute arbitrary code, and obtain sensitive information v...

CWE-13332023

CVE-2023-29487

CRITICAL
CVSS:9.1(Critical)

An issue was discovered in Heimdal Thor agent versions 3.4.2 and before on Windows and 2.6.9 and before on macOS, allows attackers to cause a denial of service (DoS) via the Threat To Process Correlat...

CWE-13332023

CVE-2015-10005

HIGH
CVSS:7.5(High)

A vulnerability was found in markdown-it up to 2.x. It has been classified as problematic. Affected is an unknown function of the file lib/common/html_re.js. The manipulation leads to inefficient regu...

CWE-13332015

CVE-2015-8315

HIGH
CVSS:7.5(High)

The ms package before 0.7.1 for Node.js allows attackers to cause a denial of service (CPU consumption) via a long version string, aka a "regular expression denial of service (ReDoS)."

CWE-13332015

CVE-2015-8854

HIGH
CVSS:7.5(High)

The marked package before 0.3.4 for Node.js allows attackers to cause a denial of service (CPU consumption) via unspecified vectors that trigger a "catastrophic backtracking issue for the em inline ru...

CWE-13332015

CVE-2017-20165

HIGH
CVSS:7.5(High)

A vulnerability classified as problematic has been found in debug-js debug up to 3.0.x. This affects the function useColors of the file src/node.js. The manipulation of the argument str leads to ineff...

CWE-13332017