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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 5
https://github.com/micronaut-projects/micronaut-core/commit/1afe509677c51b32004…
security-advisories@github.com
https://github.com/micronaut-projects/micronaut-core/pull/12410
security-advisories@github.com
https://github.com/micronaut-projects/micronaut-core/releases/tag/v3.10.5
security-advisories@github.com
https://github.com/micronaut-projects/micronaut-core/releases/tag/v4.10.16
security-advisories@github.com
https://github.com/micronaut-projects/micronaut-core/security/advisories/GHSA-4…
security-advisories@github.com