Sonatype Nexus 3.22.1-3.90.2 Task Exec perm bypassing nexus.scripts.allowCreation
CVE-2026-3199 Published on April 8, 2026
Nexus Repository 3 - Authenticated Remote Code Execution via Task Property Injection
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.
Vulnerability Analysis
CVE-2026-3199 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is a Marshaling, Unmarshaling Vulnerability?
The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid.
CVE-2026-3199 has been classified to as a Marshaling, Unmarshaling vulnerability or weakness.
Products Associated with CVE-2026-3199
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Affected Versions
Sonatype Nexus Repository:- Version 3.22.1 and below 3.91.0 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.