CVE-2026-3329

In Sonatype Nexus Repository 3, two blobstore group management REST API endpoints did not correctly enforce authorization. A user with only nexus:blobstores:create permission could convert an existing blobstore into a group blobstore, an action requiring nexus:blobstores:update. This could lead to unauthorized modification of blobstore configuration.

In affected versions of Nexus Repository 3, the script execution endpoint did not verify whether script execution had been administratively disabled. An account with script-execution permission could continue to run previously-created scripts even after nexus.scripts.allowCreation=false, undermining the expectation that this setting fully blocks script execution.

An authenticated user with the nx-licensing-create privilege can upload a specially crafted license file to execute arbitrary operating system commands as the Nexus process user in Sonatype Nexus Repository 3 versions before 3.92.0.

In Sonatype Nexus Repository versions 3.6.0 through before 3.92.0, an authenticated user with upload permission to a hosted repository can store content that causes arbitrary JavaScript execution in the browser of any user browsing that repository directory via the HTML index page. This could allow the attacker to perform actions in the context of the victim's session.

Sonatype Nexus Repository versions 3.0.0 through 3.90.2 contain a reflected cross-site scripting vulnerability that allows unauthenticated remote attackers to execute arbitrary JavaScript in a victim's browser through a specially crafted URL. Exploitation requires user interaction.

A vulnerability in the task management component of Sonatype Nexus Repository versions 3.22.1 through 3.90.2 allows an authenticated attacker with task creation permissions to execute arbitrary code, bypassing the nexus.scripts.allowCreation security control.

Server-Side Request Forgery (SSRF) in the Remote Browser Plugin in Sonatype Nexus Repository 2.x up to and including 2.15.2 allows unauthenticated remote attackers to exfiltrate proxy repository credentials via crafted HTTP requests.

Sonatype Nexus Repository 3.x through 3.33.1-01 is vulnerable to an HTTP header injection. By sending a crafted HTTP request, a remote attacker may disclose sensitive information or request external resources from a vulnerable instance.