Nexus Repository 3 - Stored Cross-Site Scripting (XSS) via Blob Store Name (CVE-2026-17596) | HOL Guard CVE

Medium · CVSS 6.3CVE-2026-17596

Nexus Repository 3 - Stored Cross-Site Scripting (XSS) via Blob Store Name

Answer in brief

CVE-2026-17596 records a Medium severity (CVSS 6.3) vulnerability in Nexus Repository 3 - Stored Cross-Site Scripting (XSS) via Blob Store Name. The current sources do not mark it as known exploited. The current feed maps Sonatype/Nexus Repository 3 (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 7, 2026Updated Sep 1, 2026Source checked Sep 21, 2026First seen by HOL Aug 7, 2026Material review Sep 1, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 6.3
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 6.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Sonatype/Nexus Repository 3 (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Sonatype/Nexus Repository 3generic	>=3.16.0 <3.95.0	3.95.0

Recommended response

Check inventory. Check lockfiles and deployed manifests for Sonatype/Nexus Repository 3.
Review the reported fix. Update Sonatype/Nexus Repository 3 to 3.95.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 7, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 1, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 7, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.