What is the CVSS score of CVE-2025-32379?

CVE-2025-32379 has a CVSS 3.1 base score of 5.0 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L. EPSS exploitation probability: 0.2%.

Which versions of Node.js are affected by CVE-2025-32379?

Organizations using koa should be aware of moderate risk from CVE-2025-32379, a cross-site scripting vulnerability rated CVSS 5.0.. A patch is available.

How to fix or mitigate CVE-2025-32379?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Node.js CVE-2025-32379

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2025-04-09 security-advisories@github.com

XSS Node.js Koa Red Hat

5.0

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

5.0 MEDIUM

AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

Red Hat

5.0 MEDIUM

qualitative

Primary rating from GitHub Advisory.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:35 vuln.today

Patch released

Mar 28, 2026 - 18:35 nvd

Patch available

CVE Published

Apr 09, 2025 - 16:15 nvd

MEDIUM 5.0

DescriptionGitHub Advisory

Koa is expressive middleware for Node.js using ES2017 async functions. In koa < 2.16.1 and < 3.0.0-alpha.5, passing untrusted user input to ctx.redirect() even after sanitizing it, may execute javascript code on the user who use the app. This issue is patched in 2.16.1 and 3.0.0-alpha.5.

AnalysisAI

Koa is expressive middleware for Node.js using ES2017 async functions. Rated medium severity (CVSS 5.0), this vulnerability is remotely exploitable, no authentication required. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. Koa is expressive middleware for Node.js using ES2017 async functions. In koa < 2.16.1 and < 3.0.0-alpha.5, passing untrusted user input to ctx.redirect() even after sanitizing it, may execute javascript code on the user who use the app. This issue is patched in 2.16.1 and 3.0.0-alpha.5. Affected products include: Koajs Koa.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.