CVE-2026-3438
Received Received - Intake
Reflected XSS in Sonatype Nexus Repository Allows Remote Script Execution

Publication date: 2026-04-08

Last updated on: 2026-04-08

Assigner: Sonatype

Description
A reflected cross-site scripting vulnerability exists in Sonatype Nexus Repository versions 3.0.0 through 3.90.2 that allows unauthenticated remote attackers to execute arbitrary JavaScript in a victim's browser through a specially crafted URL. Exploitation requires user interaction.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-04-08
Last Modified
2026-04-08
Generated
2026-06-16
AI Q&A
2026-04-09
EPSS Evaluated
2026-06-15
NVD
CVE-2026-3438
EUVD
EUVD-2026-20757
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
sonatype nexus_repository From 3.0.0 (inc) to 3.90.2 (inc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability is a reflected cross-site scripting (XSS) issue found in Sonatype Nexus Repository versions 3.0.0 through 3.90.2. It allows unauthenticated remote attackers to execute arbitrary JavaScript code in the browser of a victim by tricking them into clicking a specially crafted URL. Exploitation requires the victim to interact with the malicious link.

Impact Analysis

The impact of this vulnerability is that an attacker can execute arbitrary JavaScript in the victim's browser without authentication. This can lead to theft of sensitive information, session hijacking, or other malicious actions performed in the context of the victim's browser session. However, exploitation requires user interaction, such as clicking a malicious link.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-3438. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart