Executive brief
Sonatype Nexus Repository 3 is a popular platform used by software development teams to manage and store software components and dependencies. A security vulnerability allows an authorized user with specific licensing permissions to upload a malicious file that executes commands on the underlying server. This could lead to a complete takeover of the repository server, potentially compromising the integrity of software builds or exposing sensitive intellectual property.
Technical details
A remote command execution vulnerability exists in Sonatype Nexus Repository 3 due to the insecure deserialization of untrusted data (CWE-502) during the license upload process. An attacker must be authenticated and possess the 'nx-licensing-create' privilege to exploit this flaw. By uploading a specially crafted license file, the attacker can trigger the execution of arbitrary OS commands with the privileges of the Nexus process user. This vulnerability is addressed in version 3.92.0 and later.
Affected products
- Sonatype Nexus Repository 3 < 3.92.0
Timeline
- 2026-06-16: disclosed
- 2026-06-16: advisory