What is CVE-2026-17596?

CVE-2026-17596 is a medium-severity vulnerability in Sonatype Nexus Repository 3, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-08-07.

How severe is CVE-2026-17596?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Sonatype Nexus Repository 3

CVE-2026-17596

Nexus Repository 3 was found to be vulnerable to stored cross-site scripting (XSS). A user with the nexus:blobstores:create or nexus:blobstores:update permission could set a blob store name containing malicious script content, which would later execute in the browser of another user viewing system health-check status. This issue has been fixed in version 3.95.0.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-08-07 · last modified 2026-09-22.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (37.2th percentile), scored 2026-11-04.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002

Affected products

Sonatype Nexus Repository 3 — versions 3.16.0
Sonatype Nexus Repository Manager

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

103e4ec9-0a87-450b-af77-479448ddef11 (Release Notes, patch)
103e4ec9-0a87-450b-af77-479448ddef11 (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-17596?: CVE-2026-17596 is a medium-severity vulnerability in Sonatype Nexus Repository 3, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-08-07.
How severe is CVE-2026-17596?: Medium severity. CVSS v3 base score is 6.1 out of 10.