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High · 7.5 CVE-2026-33012 EUVD-2026-13551GHSA-2hcp-gjrf-7fhc

Micronaut Framework vulnerable to a Denial of Service in HTML error response caching

Published Mar 20, 2026 · Updated Mar 20, 2026 · Assigned by GitHub_M

Description

Micronaut Framework is a JVM-based full stack Java framework designed for building modular, easily testable JVM applications. Versions 4.7.0 through 4.10.16 used an unbounded ConcurrentHashMap cache with no eviction policy in its DefaultHtmlErrorResponseBodyProvider. If the application throws an exception whose message may be influenced by an attacker, (for example, including request query value parameters) it could be used by remote attackers to cause an unbounded heap growth and OutOfMemoryError, leading to DoS. This issue has been fixed in version 4.10.7.

Affected products

VendorProductAffectedFixed
micronaut-projects micronaut-core >= 4.7.0, < 4.10.17 —

Affected packages

EcosystemPackageAffectedFixedRecord
Maven io.micronaut:micronaut-http-server >= 4.7.0, < 4.10.17 4.10.17 GHSA-2hcp-gjrf-7fhc

References