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CVE-2026-14644— Nexus Repository 3 - Privilege Escalation

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 3.19.0至3.95.0之前版本存在缓冲区错误漏洞，该漏洞源于REST privileges API的权限更新端点存在类型混淆缺陷，可能导致具有权限管理权限的已认证用户在某些角色配置下将自身权限提升为完全管理员。

CVSS 8.6 · High EPSS 0.34% · P25

Affected Version Matrix 1

VendorProduct Version RangeStatus
Sonatype Nexus Repository 3 3.19.0< 3.95.0 affected
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I. Basic Information for CVE-2026-14644

Vulnerability Information
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Vulnerability Title
Nexus Repository 3 - Privilege Escalation
Source: CVE Program / CVE List V5
Vulnerability Description
Nexus Repository 3 contained a privilege escalation vulnerability in the REST privileges API. An authenticated user with permission to manage privileges could, under certain role configurations, escalate their own access to full administrator by exploiting a type-confusion flaw in the privilege update endpoint.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用不兼容类型访问资源(类型混淆)
Source: CVE Program / CVE List V5
Vulnerability Title
Sonatype Nexus Repository 缓冲区错误漏洞
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 3.19.0至3.95.0之前版本存在缓冲区错误漏洞，该漏洞源于REST privileges API的权限更新端点存在类型混淆缺陷，可能导致具有权限管理权限的已认证用户在某些角色配置下将自身权限提升为完全管理员。
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 3.19.0 ~ 3.95.0 cpe:2.3:a:sonatype:nexus_repository_manager:3.19.0:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-14644

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III. Intelligence Information for CVE-2026-14644

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Vendor Advisories for CVE-2026-14644 (1)

Vendor Pages for CVE-2026-14644 (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-2026-17594 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-2026-17595 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-843

V. Comments for CVE-2026-14644

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