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CVE-2026-17595— Nexus Repository 3 - JEXL Content Selector Sandbox Property-Read Bypass

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 3.15.0至3.95.0之前版本存在信息泄露漏洞，该漏洞源于JEXL表达式沙箱不完整，可能导致持有nexus:selectors:create权限的账户构造表达式读取不应暴露的Java对象属性，泄露内部JVM类元数据（如类名和类加载器名称）。

CVSS 5.3 · Medium EPSS 0.23% · P13

Possible ATT&CK Techniques 1 AI

T1608 · Stage Capabilities

Affected Version Matrix 1

VendorProduct Version RangeStatus
Sonatype Nexus Repository 3 3.15.0< 3.95.0 affected
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I. Basic Information for CVE-2026-17595

Vulnerability Information
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Vulnerability Title
Nexus Repository 3 - JEXL Content Selector Sandbox Property-Read Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
Nexus Repository 3 did not fully sandbox JEXL expressions used in Content Selectors. An account holding the nexus:selectors:create permission could construct an expression that read Java object properties not intended to be exposed to the expression engine, disclosing internal JVM class metadata such as class and classloader names. This issue does not permit method invocation, object construction, or arbitrary code execution. This has been fixed by restricting property access in the JEXL sandbox to the intended data types.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
将系统数据暴露到未授权控制的范围
Source: CVE Program / CVE List V5
Vulnerability Title
Sonatype Nexus Repository 信息泄露漏洞
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 3.15.0至3.95.0之前版本存在信息泄露漏洞，该漏洞源于JEXL表达式沙箱不完整，可能导致持有nexus:selectors:create权限的账户构造表达式读取不应暴露的Java对象属性，泄露内部JVM类元数据（如类名和类加载器名称）。
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 3.15.0 ~ 3.95.0 cpe:2.3:a:sonatype:nexus_repository_manager:3.15.0:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-17595

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III. Intelligence Information for CVE-2026-17595

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Vendor Advisories for CVE-2026-17595 (1)

Vendor Pages for CVE-2026-17595 (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-2026-17596 6.3 MEDIUM Nexus Repository 3 - Stored Cross-Site Scripting (XSS) via Blob Store Name
CVE-2026-17598 5.3 MEDIUM Nexus Repository 3 - Improper Input Validation in Scheduled Task Configuration
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-497

V. Comments for CVE-2026-17595

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