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CVE-2026-113373— Nexus Repository 3 - Disabled or Locked Single Sign-On Users Can Sign In Again

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 Pro 在用户通过已配置的 SAML 或 OAuth2/OpenID Connect 身份提供商进行登录时，未检查本地账户状态。即使某用户的账户已被 Nexus Repository 管理员禁用或锁定，该用户仍可使用身份提供商中同一账户的有效凭证重新登录，从而获得包含该账户角色的新会话。攻击者无需拥有 Nexus Repository 的现有会话，也无需具备任何 Nexus Repository 权限。攻击者仅需拥有一个在身份提供商中持有有效凭证的命名账户。匿

CVSS 9.1 · Critical

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2026-113373

Vulnerability Information
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Vulnerability Title
Nexus Repository 3 - Disabled or Locked Single Sign-On Users Can Sign In Again
Source: CVE Program / CVE List V5
Vulnerability Description
Sonatype Nexus Repository 3 Pro does not check the local account status when a user signs in through a configured SAML or OAuth2/OpenID Connect identity provider. A user whose account was disabled or locked by an administrator in Nexus Repository can sign in again with valid identity provider credentials for the same account, and then receives a new session with the roles of that account. The attacker needs no Nexus Repository session and no Nexus Repository privilege. The attacker needs a named account that holds valid credentials at the identity provider. The anonymous user is not part of this attack path.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1390
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Sonatype Nexus Repository 3 3.86.0 ~ 3.98.0 cpe:2.3:a:sonatype:nexus_repository_manager:3.86.0:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-113373

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III. Intelligence Information for CVE-2026-113373

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Other References for CVE-2026-113373 (2)

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

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-2026-113372 7.1 HIGH Nexus Repository 3 - Insufficiently Protected Credentials in YUM Repository Signing Key
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-1390