CVE-2026-33013 Details
Description
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.
A denial-of-service vulnerability has been identified in Micronaut Framework versions prior to 4.10.16 and 3.10.5. The issue arises in the JsonBeanPropertyBinder component, which improperly manages array index order during form-url-encoded body binding. This flaw allows remote attackers to create a non-terminating loop that exhausts CPU resources and leads to an OutOfMemoryError. The vulnerability can be exploited by sending crafted indexed form parameters with descending order, such as 'authors[1].name' followed by 'authors[0].name'.
Users are advised to upgrade to Micronaut Framework versions 4.10.16 or 3.10.5, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 25, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-835 | Loop with Unreachable Exit Condition ('Infinite Loop') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| objectcomputing micronaut | < 3.10.5 >= 4.0.0, < 4.10.16 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 24, 2026 | Initial Analysis | [email protected] |
| Mar 20, 2026 | New CVE Received | [email protected] |