Vulnerability-Lookup

GHSA-387M-935M-C4VW

Vulnerability from github – Published: 2026-07-09 13:36 – Updated: 2026-07-09 13:36

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.

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

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "io.micronaut:micronaut-http-client"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.10.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "io.micronaut:micronaut-http-client"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0-M1"
            },
            {
              "fixed": "4.10.24"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "io.micronaut:micronaut-http-client"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.0.0-M1"
            },
            {
              "fixed": "5.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-09T13:36:49Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "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) \u003e=\n- For Micronaut 4, versions equal or greater than [4.10.24](https://github.com/micronaut-projects/micronaut-core/releases/v4.10.24) \u003e=\n- For Micronaut 3, versions equal or greater than [3.10.7](https://github.com/micronaut-projects/micronaut-core/releases/v3.10.7) \u003e=\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",
  "id": "GHSA-387m-935m-c4vw",
  "modified": "2026-07-09T13:36:49Z",
  "published": "2026-07-09T13:36:49Z",
  "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"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Micronaut doesn\u0027t set a maximum redirect count for its HTTP Client, enabling infinite loop DoS"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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