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GHSA-2hcp-gjrf-7fhc

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

Source: GitHub Advisory Database (reviewed) High CVE-2026-33012

Packages

EcosystemPackageAffectedFixed in
Maven io.micronaut:micronaut-http-server >= 4.7.0, < 4.10.17 4.10.17

Details

As written in the advisory (Markdown source, shown as plain text).

`DefaultHtmlErrorResponseBodyProvider` in `io.micronaut:micronaut-http-server` since `4.7.0` and until `4.10.7` used an unbounded `ConcurrentHashMap` cache with no eviction policy. If the application throws an exception whose message may be influenced by an attacker, for example, including request query value parameters, this could be used by remote attackers to cause a denial of service (unbounded heap growth and OutOfMemoryError). Fixed via: https://github.com/micronaut-projects/micronaut-core/commit/1e2ba2c14386af3d47751732d02053a72b0b49b3

References

External links from the advisory. They lead to third-party sites.