Auth bypass in Sonatype Nexus Repository 3

CVE-2026-113374

Sonatype Nexus Repository 3 does not require realm administration permission when a user creates a Rut Auth capability. A user who holds only the capability creation permission (nexus:capabilities:create) can create this capability, which turns on header-based authentication for the instance. A remote client can then authenticate as an existing user, including an administrator, without credentials.

Vulnerability class: Broken Access Control

Published · last modified .

EPSS exploit prediction

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Affected products

Weakness classification (CWE)

References