Vulnerability · Published Nov 4, 2026 · Assigned by Sonatype
CVE-2026-113373Nexus Repository 3 - Disabled or Locked Single Sign-On Users Can Sign In Again
Critical 9.1
In plain English
A critical-severity security flaw in Nexus Repository 3 from Sonatype. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Sonatype | Nexus Repository 3 | 3.86.0 – before 3.98.0 |
Weakness: CWE-1390 · Vector: 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