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

Quick assessment

Affected
Sonatype Nexus Repository 3
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Sonatype Nexus Repository是美国Sonatype公司的一个集中存储、管理和分发软件包、二进制文件、容器镜像、构建制品及AI模型的制品仓库管理平台。 Sonatype Nexus Repository 3 3.95.0之前版本存在跨站脚本漏洞，该漏洞源于具有nexus:blobstores:create或nexus:blobstores:update权限的用户可设置包含恶意脚本内容的blob存储名称，导致其他用户查看系统健康检查状态时在浏览器中执行恶意脚本，容易受到存储型跨站脚本攻击

CVSS 6.3 · Medium EPSS 0.24% · P13

Affected Version Matrix 1

VendorProduct Version RangeStatus
Sonatype Nexus Repository 3 3.16.0< 3.95.0 affected
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I. Basic Information for CVE-2026-17596

Vulnerability Information
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Vulnerability Title
Nexus Repository 3 - Stored Cross-Site Scripting (XSS) via Blob Store Name
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Sonatype Nexus Repository 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sonatype Nexus Repository是美国Sonatype公司的一个集中存储、管理和分发软件包、二进制文件、容器镜像、构建制品及AI模型的制品仓库管理平台。 Sonatype Nexus Repository 3 3.95.0之前版本存在跨站脚本漏洞，该漏洞源于具有nexus:blobstores:create或nexus:blobstores:update权限的用户可设置包含恶意脚本内容的blob存储名称，导致其他用户查看系统健康检查状态时在浏览器中执行恶意脚本，容易受到存储型跨站脚本攻击
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Sonatype Nexus Repository 3 3.16.0 ~ 3.95.0 cpe:2.3:a:sonatype:nexus_repository_manager:3.16.0:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-17596

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III. Intelligence Information for CVE-2026-17596

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Vendor Advisories for CVE-2026-17596 (1)

Vendor Pages for CVE-2026-17596 (1)

Same Patch Batch · Sonatype · 2026-08-07 · 11 CVEs total

CVE-2026-17601 8.9 HIGH Nexus Repository 3 - Wildcard Privilege Update Self-Escalation to Administrator
CVE-2026-17600 8.7 HIGH Nexus Repository 3 - Session Not Invalidated on User Account Deletion or Deactivation
CVE-2026-17603 8.7 HIGH Nexus Repository 3 - HikariCP connectionInitSql Injection RCE via DataStore Configuration
CVE-2026-14644 8.6 HIGH Nexus Repository 3 - Privilege Escalation
CVE-2026-17594 8.2 HIGH Nexus Repository 3 - Authorization Bypass in Repository Creation
CVE-2026-17593 7.2 HIGH Nexus Repository - Arbitrary Class Instantiation via Unsafe Realm Configuration
CVE-2026-17599 6.9 MEDIUM Nexus Repository 3 - Unverified Onboarding State on change-admin-password Endpoint
CVE-2026-17598 5.3 MEDIUM Nexus Repository 3 - Improper Input Validation in Scheduled Task Configuration
CVE-2026-17595 5.3 MEDIUM Nexus Repository 3 - JEXL Content Selector Sandbox Property-Read Bypass
CVE-2026-17597 5.1 MEDIUM Nexus Repository 3 - Server-Side Request Forgery via Email Configuration Verification

IV. Related Vulnerabilities

Same product: Nexus Repository 3
Same vendor: Sonatype
Same weakness: CWE-79

V. Comments for CVE-2026-17596

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