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nexus-repository

CVE-2026-3199 is a critical vulnerability in Sonatype Nexus Repository versions 3.22.1 through 3.90.2. It affects the task management component, allowing an authenticated attacker with task creation permissions to execute arbitrary code by bypassing the nexus.scripts.allowCreation security control. The vulnerability is related to deserialization of untrusted data (CWE-502). The CVSS 4.

This vulnerability in Sonatype Nexus Repository arises from unsafe deserialization in the task management component. An attacker who is authenticated and has permissions to create tasks can exploit this flaw to execute arbitrary code, circumventing the nexus.scripts.allowCreation security control designed to restrict script creation. The issue affects versions from 3.22.1 through 3.90.2. The CVSS 4.0 vector indicates network attack vector, low attack complexity, no user interaction, and high impact on confidentiality, integrity, availability, and security controls. The vendor has not yet provided an official fix or remediation level, and the product is not a cloud service, so remediation depends on vendor updates or workarounds.

Detailed information about CVE-2026-3199: CWE-502 Deserialization of Untrusted Data in Sonatype Nexus Repository affecting Sonatype Nexus Repository. Get real-t

CVE-2026-3199: CWE-502 Deserialization of Untrusted Data in Sonatype Nexus Repository - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2026-3199: CWE-502 Deserialization of Untrusted Data in Sonatype Nexus Repository

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