Micronaut doesn't set a maximum redirect count for its HTTP Client, enabling infinite loop DoS

HIGH 7.5GHSA-387m-935m-c4vw · Published 09/07/2026 · updated 10/09/2026

In short

GHSA-387m-935m-c4vw is a HIGH (CVSS 7.5) vulnerability affecting io.micronaut:micronaut-http-client.
Fix: update to 4.10.24, 5.0.1, 3.10.7 or later.

Package	Affected versions	Patched versions
io.micronaut:micronaut-http-client Maven	`≥ 4.0.0-M1, < 4.10.24≥ 5.0.0-M1, < 5.0.1< 3.10.7`	`4.10.245.0.13.10.7`

Description

The Netty-based Micronaut HTTP Client does not impose a limit on HTTP redirections, potentially allowing an infinite redirect loop that could lead to a denial-of-service attack.

Patches

The following versions are patched:

For Micronaut 5, versions equal or greater than 5.0.1 >=
For Micronaut 4, versions equal or greater than 4.10.24 >=
For Micronaut 3, versions equal or greater than 3.10.7 >=

Workarounds

Resources

Micronaut 5 Patch: https://github.com/micronaut-projects/micronaut-core/commit/6e88a972718d6e1521c5b3bb7766451798dba4e3 Micronaut 4 Patch: https://github.com/micronaut-projects/micronaut-core/commit/f1dffffec8fb5e3b7e94ae907ce0be3831e499d4 Micronaut 3 Patch: https://github.com/micronaut-projects/micronaut-core/commit/c06a2715ca7f78321bc3ca05f41cca78cd351320

References

micronaut-projects/micronaut-core security advisory · WEB
micronaut-projects/micronaut-core commit 6e88a97 · WEB
micronaut-projects/micronaut-core commit c06a271 · WEB
micronaut-projects/micronaut-core commit f1dffff · WEB
micronaut-projects/micronaut-core · PACKAGE

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