CVE-2026-3199: Nexus Repository 3 - Authenticated Remote Code Execution via Task Property Injection

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-08 · updated 2026-09-18
Weakness: CWE-502

Description

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.

Affected products

Sonatype Nexus Repository 3: from 3.22.1 before 3.91.0 — fixed in 3.91.0

How to fix

Upgrade to a fixed version: Sonatype Nexus Repository 3 3.91.0. Check the vendor advisory for mitigations.

References

https://help.sonatype.com/en/sonatype-nexus-repository-3-91-0-release-notes.html
https://support.sonatype.com/hc/en-us/articles/50615414548499

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