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CVE-2026-113372— Nexus Repository 3 - Insufficiently Protected Credentials in YUM Repository Signing Key

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 3 会将 YUM 代理或组仓库的私有签名密钥泄露给仅拥有该仓库“读取”管理权限的账户。该账户无需具备编辑仓库的权限即可获取密钥。任何持有该密钥的实体均可冒充该仓库对仓库元数据进行签名。

CVSS 7.1 · High

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-113372

Vulnerability Information
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Vulnerability Title
Nexus Repository 3 - Insufficiently Protected Credentials in YUM Repository Signing Key
Source: CVE Program / CVE List V5
Vulnerability Description
Sonatype Nexus Repository 3 returns the private signing key of a YUM proxy or group repository to an account that holds only the read privilege for administering that repository. The account does not need the privilege to edit the repository. A party that holds the key can sign repository metadata as that repository.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的凭证保护机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Sonatype Nexus Repository 3 3.93.0 ~ 3.98.0 cpe:2.3:a:sonatype:nexus_repository_manager:3.93.0:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-113372

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-113372

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Other References for CVE-2026-113372 (2)

Same Patch Batch · Sonatype · 2026-11-04 · 7 CVEs total

CVE-2026-113373 9.1 CRITICAL Nexus Repository 3 - Disabled or Locked Single Sign-On Users Can Sign In Again
CVE-2026-113374 8.6 HIGH Nexus Repository 3 - Privilege Escalation via Rut Auth Capability Creation
CVE-2026-113370 7.7 HIGH Nexus Repository 3 - SQL Injection in Reindex Search by Pattern Task
CVE-2026-113371 7.1 HIGH Nexus Repository 3 - Insufficiently Protected Credentials in Repository Signing Passphrase
CVE-2026-113369 6.3 MEDIUM Nexus Repository 3 - Stored Cross-Site Scripting in OCI Attestations Tab
CVE-2026-113368 5.3 MEDIUM Nexus Repository 3 - Group Repository Member Authorization Bypass

IV. Related Vulnerabilities

Same product: Nexus Repository 3
Same vendor: Sonatype
Same weakness: CWE-522