GHSA-387m-935m-c4vw: Micronaut http client Denial of Service Vulnerability

HIGH
Share
CVSS 7.5
Published
Advisory Summary

GHSA-387m-935m-c4vw is a HIGH (CVSS 7.5) denial of service vulnerability (General Security Weakness) affecting Micronaut http client libraries in the Maven ecosystem. The issue involves micronaut doesn't set a maximum redirect count for its http client, enabling infinite loop dos. Remediation is available by upgrading affected packages to version 4.10.24, 3.10.7, 5.0.1.

GHSA-387m-935m-c4vw at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-387m-935m-c4vw
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification General Security Weakness
Affected Product Micronaut http client
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix GHSA-387m-935m-c4vw

To remediate this vulnerability, upgrade all affected Micronaut http client dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

io.micronaut:micronaut-http-client fixed: 4.10.24 
<dependency>
    <groupId>io.micronaut</groupId>
    <artifactId>micronaut-http-client</artifactId>
    <version>4.10.24</version>
</dependency>
io.micronaut:micronaut-http-client fixed: 3.10.7 
<dependency>
    <groupId>io.micronaut</groupId>
    <artifactId>micronaut-http-client</artifactId>
    <version>3.10.7</version>
</dependency>
io.micronaut:micronaut-http-client fixed: 5.0.1 
<dependency>
    <groupId>io.micronaut</groupId>
    <artifactId>micronaut-http-client</artifactId>
    <version>5.0.1</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=io.micronaut

How to Check if You Are Affected

To determine whether your Java application is affected by GHSA-387m-935m-c4vw, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=io.micronaut

Analyze the terminal output to locate any version of Micronaut http client in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.10.24), your application is affected.

Note: The mvn dependency:tree -Dincludes=io.micronaut command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under General Security Weakness. In Micronaut http client, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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](https://github.com/micronaut-projects/micronaut-core/releases/v5.0.1) >= - For Micronaut 4, versions equal or greater than [4.10.24](https://github.com/micronaut-projects/micronaut-core/releases/v4.10.24) >= - For Micronaut 3, versions equal or greater than [3.10.7](https://github.com/micronaut-projects/micronaut-core/releases/v3.10.7) >= ### Workarounds No ### 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

GHSA-387m-935m-c4vw Affected Micronaut http client Versions

3 component(s)
Fixed Versions:
4.10.243.10.75.0.1
Product / Package Ecosystem Affected Versions Fixed Version
io.micronaut:micronaut-http-client
maven/io.micronaut/micronaut-http-client
Maven
≥ 4.0.0-M1
< 4.10.24
4.10.24
io.micronaut:micronaut-http-client
maven/io.micronaut/micronaut-http-client
Maven
< 3.10.7
3.10.7
io.micronaut:micronaut-http-client
maven/io.micronaut/micronaut-http-client
Maven
≥ 5.0.0-M1
< 5.0.1
5.0.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/micronaut-projects/micronaut-core/security/advisories/GHSA-387m-935m-c4vw
Security Fix Commit FIX COMMIT
https://github.com/micronaut-projects/micronaut-core/commit/6e88a972718d6e1521c5b3bb7766451798dba4e3
Security Fix Commit FIX COMMIT
https://github.com/micronaut-projects/micronaut-core/commit/c06a2715ca7f78321bc3ca05f41cca78cd351320
Security Fix Commit FIX COMMIT
https://github.com/micronaut-projects/micronaut-core/commit/f1dffffec8fb5e3b7e94ae907ce0be3831e499d4
Micronaut http client Source Repository REPOSITORY
https://github.com/micronaut-projects/micronaut-core

Frequently Asked Questions

What is GHSA-387m-935m-c4vw?
GHSA-387m-935m-c4vw is a security vulnerability in Micronaut http client involving Micronaut doesn't set a maximum redirect count for its HTTP Client, enabling infinite loop DoS under General Security Weakness.
Which Micronaut http client versions are affected?
Affected versions include releases prior to 4.10.24, 3.10.7, 5.0.1 across affected packages: io.micronaut:micronaut-http-client.
What version fixes GHSA-387m-935m-c4vw?
Upgrading to 4.10.24, 3.10.7, 5.0.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is micronaut-http-client affected?
Yes, io.micronaut:micronaut-http-client is affected in releases prior to 4.10.24, 3.10.7, 5.0.1. Upgrade your dependency to 4.10.24, 3.10.7, 5.0.1 or later.
What is the CVSS score of GHSA-387m-935m-c4vw?
GHSA-387m-935m-c4vw has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with GHSA-387m-935m-c4vw?
GHSA-387m-935m-c4vw is classified under General Security Weakness.
How can I check Maven dependencies for GHSA-387m-935m-c4vw?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=io.micronaut'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-387m-935m-c4vw",
  "modified" : "2026-07-09T13:36:49Z",
  "published" : "2026-07-09T13:36:49Z",
  "aliases" : [ ],
  "summary" : "Micronaut doesn't set a maximum redirect count for its HTTP Client, enabling infinite loop DoS",
  "details" : "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.\n\n### Patches\n\nThe following versions are patched: \n\n- For Micronaut 5, versions equal or greater than [5.0.1](https://github.com/micronaut-projects/micronaut-core/releases/v5.0.1) >=\n- For Micronaut 4, versions equal or greater than [4.10.24](https://github.com/micronaut-projects/micronaut-core/releases/v4.10.24) >=\n- For Micronaut 3, versions equal or greater than [3.10.7](https://github.com/micronaut-projects/micronaut-core/releases/v3.10.7) >=\n\n### Workarounds\nNo\n\n### Resources\nMicronaut 5 Patch: https://github.com/micronaut-projects/micronaut-core/commit/6e88a972718d6e1521c5b3bb7766451798dba4e3\nMicronaut 4 Patch: https://github.com/micronaut-projects/micronaut-core/commit/f1dffffec8fb5e3b7e94ae907ce0be3831e499d4\nMicronaut 3 Patch: https://github.com/micronaut-projects/micronaut-core/commit/c06a2715ca7f78321bc3ca05f41cca78cd351320",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "io.micronaut:micronaut-http-client"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.10.7"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "io.micronaut:micronaut-http-client"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.0-M1"
      }, {
        "fixed" : "4.10.24"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "io.micronaut:micronaut-http-client"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "5.0.0-M1"
      }, {
        "fixed" : "5.0.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/micronaut-projects/micronaut-core/security/advisories/GHSA-387m-935m-c4vw"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/micronaut-projects/micronaut-core/commit/6e88a972718d6e1521c5b3bb7766451798dba4e3"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/micronaut-projects/micronaut-core/commit/c06a2715ca7f78321bc3ca05f41cca78cd351320"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/micronaut-projects/micronaut-core/commit/f1dffffec8fb5e3b7e94ae907ce0be3831e499d4"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/micronaut-projects/micronaut-core"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-07-09T13:36:49Z",
    "nvd_published_at" : null
  }
}