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CVE-2026-33013

Objectcomputing Micronaut denial of service

7.5 HIGHPublic exploitEPSS 0.78%
  1. Published20 Mar 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Objectcomputing Micronaut≥ 4.0.0 < 4.10.16 · < 3.10.5

Frequently asked

Is CVE-2026-33013 being actively exploited?

CVE-2026-33013 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.78%.

How severe is CVE-2026-33013?

CVE-2026-33013 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 0.78% probability of exploitation.

Which products are affected by CVE-2026-33013?

Affected products include Objectcomputing Micronaut.

How do I fix CVE-2026-33013?

Upgrade affected software to a fixed version, for example Objectcomputing Micronaut 4.10.16 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-33013 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.