Deserialization in Sonatype Nexus Repository

CVE-2026-3199

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.allowCreati…

Vulnerability class: Insecure Deserialization

EPSS: 0.001 (25.2th percentile) — read the EPSS interpretation.

Affected products

Sonatype Nexus Repository — versions 3.22.1

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

help.sonatype.com/en/sonatype-nexus-repository-3-91-0-release-notes.html (patch)
support.sonatype.com/hc/en-us/articles/50615414548499 (vendor-advisory)