CVE-2026-33013 | THREATINT

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 Reserved 2026-03-17 | Published 2026-03-20 | Updated 2026-03-25 | Assigner GitHub_M

HIGH: 8.2CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

Product status

>= 4.0.0-M1, < 4.10.16

affected

< 3.10.5

affected

References

github.com/...t-core/security/advisories/GHSA-43w5-mmxv-cpvh

github.com/micronaut-projects/micronaut-core/pull/12410

github.com/...ommit/1afe509677c51b320041b7a2c177366d4a4deb55

github.com/...t-projects/micronaut-core/releases/tag/v3.10.5

github.com/...-projects/micronaut-core/releases/tag/v4.10.16

cve.org (CVE-2026-33013)

nvd.nist.gov (CVE-2026-33013)

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