CVE-2026-33013: Objectcomputing Micronaut

High severity, CVSS 7.5. EPSS: 0.8% chance of exploitation in the next 30 days.

Micronaut Framework is a JVM-based full stack Java framework designed for building modular, easily testable JVM applications. Versions prior to both 4.10.16 and 3.10.5 do not correctly handle descending array index order during form-urlencoded body binding in theJsonBeanPropertyBinder::expandArrayToThreshold, which allows remote attackers to cause a DoS (non-terminating loop, CPU exhaustion, and OutOfMemoryError) via crafted indexed form parameters (e.g., authors[1].name followed by authors[0].name). This issue has been fixed in versions 4.10.16 and 3.10.5.

Affected products

• Objectcomputing Micronaut: before 3.10.5 (fixed in 3.10.5); from 4.0.0, before 4.10.16 (fixed in 4.10.16)

Published 2026-03-20. Last modified 2026-06-17.