CVE-2026-3438 | THREATINT

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.

PUBLISHED Reserved 2026-03-02 | Published 2026-04-08 | Updated 2026-04-09 | Assigner Sonatype

MEDIUM: 5.1CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

Product status

Default status

unaffected

3.0.0 (semver) before 3.91.0

affected

References

help.sonatype.com/...us-repository-3-91-0-release-notes.html patch

support.sonatype.com/hc/en-us/articles/50609137161363 vendor-advisory

cve.org (CVE-2026-3438)

nvd.nist.gov (CVE-2026-3438)

Download JSON