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.
Published: 2026-03-20
Score: 8.2 High
EPSS: < 1% Very Low
KEV: No
Impact: Denial of Service via non‑terminating loop and OutOfMemoryError triggered by descending array indices in form-urlencoded body binding
Action: Apply Patch
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-43w5-mmxv-cpvh Micronaut vulnerable to DoS via crafted form-urlencoded body binding with descending array indices
History

Wed, 25 Mar 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 24 Mar 2026 21:30:00 +0000

Type Values Removed Values Added
First Time appeared Objectcomputing
Objectcomputing micronaut
CPEs cpe:2.3:a:objectcomputing:micronaut:*:*:*:*:*:*:*:*
Vendors & Products Objectcomputing
Objectcomputing micronaut
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Fri, 20 Mar 2026 12:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-1285
References
Metrics threat_severity

None

cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate


Fri, 20 Mar 2026 09:00:00 +0000

Type Values Removed Values Added
First Time appeared Micronaut-projects
Micronaut-projects micronaut-core
Vendors & Products Micronaut-projects
Micronaut-projects micronaut-core

Fri, 20 Mar 2026 05:15:00 +0000

Type Values Removed Values Added
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.
Title Micronaut vulnerable to DoS via crafted form-urlencoded body binding with descending array indices
Weaknesses CWE-835
References
Metrics cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


Subscriptions

Micronaut-projects Micronaut-core
Objectcomputing Micronaut
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-25T14:23:38.641Z

Reserved: 2026-03-17T17:22:14.665Z

Link: CVE-2026-33013

cve-icon Vulnrichment

Updated: 2026-03-25T14:23:26.829Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-20T05:16:15.380

Modified: 2026-03-24T21:21:26.580

Link: CVE-2026-33013

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-03-20T04:47:42Z

Links: CVE-2026-33013 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-03-25T14:09:15Z

Weaknesses