CVE-2026-3438

EUVD-2026-20757
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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.1 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 47.5%
Affected Products (NVD)
VendorProductVersion
sonatypenexus_repository_manager
3.0.0 ≤
𝑥
< 3.91.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://help.sonatype.com/en/sonatype-nexus-repository-3-91-0-release-notes.html
https://support.sonatype.com/hc/en-us/articles/50609137161363